Keynote: Building IT Green: A Journey of Platforms, Data, and Developer Empowerment at Deutsche Bahn

CNCF [Cloud Native Computing Foundation]
21 Mar 202417:14

Summary

TLDRThe speaker shares a personal story of struggling with illness while highlighting the urgent issue of climate change. They emphasize the importance of individual and collective action, drawing parallels with the power of a surfing wave. The narrative then shifts to the role of technology and digitalization in addressing climate challenges, particularly focusing on sustainable mobility and the green digitalization initiative. The speaker advocates for the empowerment of developers to make significant changes through efficient use of resources and the implementation of energy-saving strategies in cloud operations, exemplified by the use of Kubernetes and other tools. The message concludes with a call to action for immediate and informed engagement in environmental conservation efforts.

Takeaways

  • 🌊 The speaker uses the metaphor of creating a 'big wave' to illustrate the collective power and energy needed to address climate change.
  • 😷 The speaker shares a personal struggle with flu, using it as a narrative to emphasize the importance of overcoming challenges, like tackling climate change.
  • 🏖️ A connection to nature through surfing is highlighted as a pivotal moment for the speaker's environmental awareness, emphasizing the need for sustainable practices.
  • 🌱 The urgency of climate change is discussed, noting that environmental issues have been recognized since the '90s, but insufficient political action has been taken.
  • 🚄 Sustainable mobility, particularly through train travel, is presented as a crucial solution for achieving climate targets, over relying on infrastructure expansion.
  • 💡 The impact of digitalization on energy consumption is acknowledged, with a prediction that it will require the electrical consumption equivalent of Sweden or Germany.
  • 🌿 The concept of 'green digitalization' is introduced, aiming to address the energy demands of digital technologies through initiatives supported by CEOs and grassroots movements.
  • 🔧 Developers are identified as key agents of change, with the power to influence software and infrastructure efficiency through their everyday decisions.
  • 🤖 Kubernetes is praised as a tool for efficient cloud operations and carbon reduction, with its potential to increase resource utilization and reduce waste.
  • 📈 The importance of data visibility and real-time information is emphasized for understanding the energy impact of code changes and workloads.
  • 🚀 The call to action is for immediate, small-scale beginnings to harness the intrinsic motivation of developers and communities to care for the planet and reduce carbon footprints.

Q & A

  • What is the main issue the speaker is struggling with at the beginning of the transcript?

    -The speaker is struggling with the flu and its effects, which include fever and hallucination dreams, making them question their ability to stand on stage and give a 15-minute talk.

  • What does the speaker compare to the experience of surfing?

    -The speaker compares the adrenaline and energy rush of catching a wave while surfing to the energy and focus they want from the audience during their talk.

  • What is the urgency the speaker refers to in relation to climate change?

    -The urgency the speaker refers to is the need for immediate action on climate change, as environmental issues were already being discussed in the '90s, and despite some political efforts like the Kyoto Protocol, they were insufficient to address the issue.

  • What is the speaker's connection to the company they mention?

    -The speaker is connected to the company through their role in promoting sustainable mobility, specifically through train travel, which they believe is an important aspect of achieving climate targets.

  • How does the speaker describe the impact of digitalization on energy consumption?

    -The speaker describes the impact of digitalization as having an exponential growth in energy consumption, with estimates suggesting a need for the electricity consumption equivalent to that of Sweden or Germany within the next three years.

  • What is the green digitalization initiative mentioned by the speaker?

    -The green digitalization initiative is a movement started in 2022 aimed at addressing the energy demands and environmental impact of digitalization. It is supported by CEOs and CIOs and has resulted in grassroots efforts from developers within the company.

  • What is the speaker's view on the concept of carbon compensation?

    -The speaker believes that while carbon compensation is an important measure, it cannot be the sole solution due to the exponential growth of energy demands. They argue that there are physical limits to growth and that strategies for sufficiency and efficiency are needed.

  • How does the speaker describe the role of developers in addressing climate change?

    -The speaker views developers as everyday decision-makers when it comes to software and believes that engaging them and providing the right tools is crucial for making changes in how code is developed and infrastructure is managed.

  • What is the significance of Kubernetes for the speaker and their company?

    -Kubernetes is seen as a tool for efficient cloud operations and carbon reduction. The speaker believes it is not just a container orchestration tool but also a platform-building tool that can help achieve high density of containers and improve resource utilization.

  • What solution does the speaker propose for better resource utilization in cloud environments?

    -The speaker proposes the use of vertical pod autoscaling to optimize container workloads according to their needs, which can help reduce wasted resources and improve overall efficiency.

  • How does the speaker suggest measuring the energy impact of workloads?

    -The speaker suggests using tools like Kepler to gather energy metrics and provide real-time data on the energy usage of individual components. This data can then be visualized in dashboards, allowing for better understanding and management of energy consumption.

  • What is the speaker's final advice to the audience?

    -The speaker advises the audience to start taking action now, as the issue of climate change is urgent. They encourage starting small and focusing on empowering developers and leveraging platforms to make a positive impact on the environment.

Outlines

00:00

🌊 Surfing and the Power of Unity

The speaker begins by sharing a personal story of struggling with the flu and feeling overwhelmed at the prospect of speaking to a large audience. However, they find inspiration in their love for surfing, using the metaphor of creating a 'big wave' to illustrate the collective power of the audience. The speaker emphasizes the importance of individual and collective action, particularly in the face of urgent environmental issues like climate change. They recount the early days of environmental awareness in the '90s and the insufficient political actions taken, such as the Kyoto Protocol, highlighting the need for more robust and engaged efforts to address climate change.

05:00

🌱 Green Digitalization and Developer Empowerment

The speaker transitions into discussing the role of digitalization in sustainability, particularly in the context of cloud computing and its increasing energy demands. They express concern over the limitations of current tools for measuring carbon emissions accurately, especially at the application level. The speaker then introduces the concept of 'green digitalization,' initiated by Deustche Telekom in 2022, which aims to tackle the environmental impact of digital technologies. They stress the importance of empowering developers to make informed decisions about resource usage and efficiency, advocating for platforms like Kubernetes as a means to achieve greener cloud operations.

10:02

🚂 Optimizing Cloud Operations for Sustainability

The speaker delves deeper into the practical aspects of optimizing cloud operations for sustainability. They discuss the challenges of managing resource allocation in containerized environments, highlighting the issue of underutilized CPU resources. The speaker advocates for the use of Kubernetes features like vertical pod autoscaling to optimize resource usage and reduce waste. They also mention the benefits of scheduling workloads to align with human work patterns, such as using down scalers to shut down unnecessary processes during off-hours. The speaker emphasizes the need for better data on energy consumption to inform decision-making and introduces tools like Kepler for energy metric analysis, which can provide insights down to the container level.

15:03

🌐 Community Building and the Future of Green Technology

In the final paragraph, the speaker reflects on the broader implications of the community's role in driving sustainable practices within technology. They stress the urgency of starting now and the importance of data in guiding efforts to reduce energy consumption. The speaker shares their experience with rolling out Kepler, highlighting the challenges of enterprise readiness and the need to balance detailed metrics with practical monitoring. They conclude by encouraging the audience to start small and to leverage the intrinsic motivation of developers to foster a culture of sustainability. The speaker's call to action is to focus on empowerment, community engagement, and the continuous improvement of green technologies.

Mindmap

Keywords

💡Flu

In the context of the video, 'flu' refers to a contagious viral illness that affects the respiratory system. The speaker mentions having caught the flu over the weekend, which highlights their personal struggle and determination to still deliver the talk despite feeling unwell. This term is used to establish a relatable human element at the beginning of the transcript, setting the stage for the audience to empathize with the speaker's situation.

💡Surfing

Surfing is a water sport that involves riding on the forward or face of a moving wave, which the speaker uses as a metaphor for the energy and action needed to address climate change. The speaker's first contact with nature and the adrenaline-filled moments experienced while surfing are contrasted with the current urgent need for collective action on climate issues. This keyword ties the personal experience of the speaker to the broader environmental message of the talk.

💡Climate Change

Climate change is the long-term alteration of temperature and typical weather patterns in a place. In the video, it represents the central theme and urgency that the speaker is trying to convey. The speaker discusses the history of climate change awareness and the need for immediate, collective action to mitigate its effects. This keyword encapsulates the global environmental challenge that the speaker is addressing and calls for action from every individual and organization.

💡Sustainability

Sustainability refers to the practice of meeting current needs without compromising the ability of future generations to meet their own needs. In the context of the video, the speaker emphasizes sustainable mobility, particularly through train travel, as a means to reduce carbon emissions and achieve climate targets. This keyword is integral to the speaker's argument for a shift in our approach to transportation and infrastructure development.

💡Digitalization

Digitalization is the process of changing from analog or manual systems to digital or computerized systems. The speaker discusses the impact of digitalization on energy consumption and the need for 'green digitalization' initiatives to address the exponential growth in energy demands. This keyword is crucial in understanding the dual role of technology in both contributing to and mitigating environmental issues.

💡Kubernetes

Kubernetes is an open-source platform used for automating deployment, scaling, and management of containerized applications. In the video, the speaker praises Kubernetes as a tool for efficient cloud operations and carbon reduction, highlighting its role in achieving high container utilization rates and resource optimization. This keyword exemplifies the practical solutions that can be implemented in the tech industry to support sustainability goals.

💡Vertical Pod Autoscaler

Vertical Pod Autoscaler (VPA) is a Kubernetes feature that automatically adjusts the resources allocated to a pod based on its CPU and memory usage. The speaker mentions VPA as a tool that empowers developers to optimize their applications' resource usage, leading to more efficient operations and reduced energy consumption. This keyword is an example of the specific technical tools that can be leveraged to address the broader issue of sustainability in software development and operations.

💡Green Digitalization

Green digitalization refers to the process of implementing digital technologies in an environmentally sustainable way, aiming to reduce the carbon footprint of digital processes. The speaker introduces the concept of 'green digitalization' as a strategic initiative to address the energy consumption associated with digitalization, emphasizing the need for a sustainable approach to technology development and use.

💡Carbon Compensation

Carbon compensation is a strategy to offset carbon dioxide emissions by investing in projects that reduce or remove an equivalent amount of CO2 elsewhere. The speaker critiques the reliance on carbon compensation, arguing that it should not be seen as a solution to the exponential growth in energy demands, but rather as one part of a broader strategy to address climate change. This keyword is important in understanding the complexities of climate action and the need for a multifaceted approach.

💡Developer Empowerment

Developer empowerment refers to the process of providing developers with the tools, knowledge, and autonomy to make decisions that positively impact the environment and efficiency of software development. The speaker emphasizes the role of developers in driving change towards sustainability through their everyday decisions and actions. This keyword highlights the importance of engaging and enabling the tech community to lead by example in sustainable practices.

💡Energy Metrics

Energy metrics are quantitative measures used to assess and track energy consumption and efficiency. In the video, the speaker discusses the importance of having access to energy metrics to understand the impact of workloads and to optimize resource usage. This keyword is central to the argument that transparency and data-driven insights are crucial for making informed decisions that support sustainability goals.

Highlights

The speaker shares a personal struggle with flu and uses it as a metaphor for needing help to create a 'wave' of action.

Growing up in an ugly suburb sparked the speaker's appreciation for nature through surfing, highlighting the importance of personal experiences in environmental awareness.

The urgency of climate change is emphasized, noting that environmental issues were recognized in the '90s but political action was insufficient.

The speaker's involvement with a company focused on sustainable mobility through train travel, underscoring the role of individual choices in climate action.

The exponential growth in electricity consumption due to digitalization is discussed, with a prediction of needing the equivalent of Germany's consumption by 2025.

The limitations of current cloud provider tools in measuring application-specific carbon emissions are highlighted, indicating a need for better metrics.

The concept of 'green digitalization' is introduced, showing the industry's response to the environmental impact of technology.

Kubernetes is praised as a tool for efficient cloud operations and carbon reduction, demonstrating the potential of technology to address environmental issues.

The importance of developer empowerment in achieving climate targets is stressed, as they are the decision-makers in software development.

The use of vertical pod autoscaling is suggested to optimize resource usage, reducing waste and improving efficiency.

The concept of scheduling workloads to align with human work patterns is proposed to save energy, such as using down scalers to turn off environments during off-hours.

Information visibility is deemed crucial for making informed decisions on energy usage, with the introduction of a tool like KLA for energy metrics.

The impact of developer actions on carbon emissions is discussed, with the idea of correlating code changes with energy consumption.

The importance of starting now and taking small steps towards energy efficiency and green technology is emphasized.

The call to focus on empowering developers and leveraging their intrinsic motivation to care for the planet is highlighted.

Transcripts

play00:00

hello Paris hello

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everyone I hope you are having a great

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time are you having a great

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time that's good to know because I'm

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having a terrible

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time I caught this flu this weekend I

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thought how I will I stand to this Stage

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15 minutes talking

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to 180 M

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all and tonight I could not sleep with

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fever and I had this kind of

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hallucination dreams and so on you know

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and I got an idea there

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and I I I will need your help so I ask

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you that you if you have things on your

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lap and so on put them on a safe place

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under your

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chair and

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um first I want to talk why I I I need

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this I I grew up in a kind of ugly

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suburb of an very beautiful capital city

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at the Atlantic and my first Contact to

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Nature and uh my interaction with nature

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was when going to to the coast to Surf

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and you have this moments when you are

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surfing and you can be completely wasted

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either because you partti the last days

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or because you were surfing the whole

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day but when there's this wave coming

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you get this adrenaline and this energy

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because you want to catch this wave and

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you definitely don't want to be caught

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by the wave so what I'm going to ask you

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is that we make a big wave and show the

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power of the cuon in Paris and for this

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I we I will give you a signal on three

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and the of course the first sles go and

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you know how wave Works no so let's go

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one two

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three

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ah this was not the wave I would like to

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catch come on I want I I want energy I

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need your energy and your impulse and I

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also want to hear the the the Overflow

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rooms and the people at home so everyone

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needs to make so again one 2 3

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go up to the back yeah thank you thank

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you very much so this is the start of

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the

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[Music]

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story the story I'm going to tell you is

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precisely about the urgency of climate

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change already in the '90s when I was

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surfing we had already all this

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environment issues coming up and um but

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the politics were still not so so far

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with it we had the first meetings in in

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uh the Rio Janeiro in '92 we had the

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first Kyoto Protocol with the first

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commitments to climate targets but they

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were all kind of insufficient although

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science already knew that it's a urgent

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matter and requires a multi-level action

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and engaging every individual and

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organization to achieve the targets that

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we need

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and um it was not difficult when a

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friend of mine um contact me uh one day

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and and said hey we have this team at

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the Deutsche bar and we do kubernetes

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and so on and yeah I love I love this

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and but I also said yeah this is

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actually a um company with a purpose

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because it's I Love Trains I love train

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travel and um I like to

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um I think sustainable Mobility is um

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with trains is a very important to

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achieve the climate targets and our

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company also believes this so we are

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pushing forward to more Train Transport

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for Freight and passengers and for

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achieving this we obvious cannot just

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build infinitely more infrastructure

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this is quite heavy infrastructure we

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also need to optimize the infrastructure

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make it more efficient more modern and

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this requires a highly degree of

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digitalization but digitalization comes

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with an with an

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impact and the impact is according to

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the International Energy agency quite uh

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remarkable we see that in the next three

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years according to the last report we

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will at least require the amount of

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electricity consumption of Sweden and in

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the worst case scenario the electricity

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consumption of Germany so we are

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reaching an exponential consumption

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phase and of

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course there our um approaches to reduce

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it but we also want to approach that the

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deutan started a green digitalization

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initiative in

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20222 to address this

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question and it came with the support of

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CEOs and cios but it immediately raised

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also a very strong Grassroots movement

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from developers from employers of the

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company that started raising a lot of

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initiatives to um small initiatives on

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their free times uh making small

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contributions uh to measure for example

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um the the emissions of websites or uh

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to make some papers on how to uh reduce

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the impact on your home office work all

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kinds of initiatives raising there

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and we also had a project where we

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wanted to measure and to bring

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developers to be able to measure the

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impact of our workloads and we started

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because we are a cloud uh based uh we

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have a cloud cloud-based approach uh we

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started to look at what the cloud

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providers

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uh give us in terms of tools and

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unfortunately we did not find uh very um

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helpful information because the tools um

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have

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limitations they are not able to assign

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to an application so if I have on my

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accounts multiple

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applications uh there's no tax support

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uh I cannot distinguish it uh the

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granularity is very low so I have 50%

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ec2 and um 20% everything else it's not

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telling me much

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it's not very actual sometimes you get

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the information three months after uh

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the data has been uh created and it does

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not give you any information on the

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energy use why is this important because

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emissions there are calculated also with

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compensation and this means that you are

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not able to establish a casual casual

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relationship between the actions that

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you do on your all day and um the the

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effect on

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emissions and to understand also the

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problem of compensation uh I would like

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to ask who is your fan of Doctor Who

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series yeah quite some yeah great

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science fiction series I watch it with

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my daughters every uh evening almost and

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I we hope still to finish it before they

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leave home but um yeah there's this

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episode where they say suddenly wake up

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in middle of London and London is full

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of a forest so this is for me a good

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metaphor of compensation of course

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compensating carbon is an important

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measure but we cannot think that with an

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exponential growth scenario of

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exponential growth of energy demands

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that we will be able to compensate all

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this energy because there are

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effectively limits to growth physical

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limits and and so we need to address the

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different strategies for um sufficiency

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what I really need and why for

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efficiency how do I minimize the

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resource used at produ and production

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and consistent

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which would be the case for example of

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of compensation so focusing first of all

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on the efficient part and on the role of

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developers back to the agents on this

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talk I had the to topic developer

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empowerment so developers are

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effectively effectively the everyday

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decision makers in what comes to

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software we don't need management papers

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to um to say we we are doing this and

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achieving this targets if we don't

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engage Developers and give them the

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tools in the hand we will not be able to

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make a change in the way we develop code

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in the way we um manage infrastructure

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so we POS the question what tools and

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and approaches are able to empower these

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developers let's start with

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platforms we have a platform strategy at

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the Doan and in the last years we comb

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converge uh the whole subsidiaries to um

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enforce standardization in this in this

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um level and the importance of platforms

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is uh on this aspect is that we can

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leverage effects and provide an high

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level of standardization and open to

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contributions that improve it

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continuously and provide safe same

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design um aspects that everyone can use

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without even thinking am I doing it

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green or not it's just um helping you to

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be green by

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default I myself I'm a bit biased I love

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kubernetes I was product owner of two

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teams uh in this field and uh have a

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personal affility to this but I believe

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kubernetes is a tool for efficient Cloud

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operations and for carbon F reduction

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per Excellence it's not only a container

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orchestration tool it's much more

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powerful than that it's a platform

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building tool and it's a green it

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tool we have uh with our clusters

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achieved one of the um interesting uh

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very high density of containers we have

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some shared clusters and we had uh then

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put of course the node AO scaling and we

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managed to achieve around 70% of CPU

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utilization on these shared clusters

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it's quite a high utilization so you

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would say well we are effective we don't

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need to do anything

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else the fact is however only 15% of

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this utilization was effectively used by

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the applications we could see for this

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for example on graph dashboards where

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there are a lot of reserved um CPU

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utilization but only a very small part

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of it is being used why is this happen

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well once it runs no one cares we are we

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have a lot of things to do in our

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business all day so I Define requests

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and

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limits um traditionally um the API uh um

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request limits 512 megabytes it is

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running I make it conservative because I

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think maybe there will be a lot of

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people coming and then I cannot burst so

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rather have it conservative and it stays

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there and it's taking CPU it's occupying

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the node and wasting

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resources fortunately kubernetes offers

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us a vertical P AO scalar there also of

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course horizontal Part auto scal and so

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on but I find this one particularly

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interesting because it is taking out of

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the ends of the developer they need to

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think what would be the appropriate

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resources and rather making

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recommendations or even automatically

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adjusting the container workloads to be

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optimized to their

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needs so let's go out with expensive

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getwork and make sure to use vertical

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pod outo scalar the second aspect

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related to the sufficient see is

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scheduling and kubernetes is also good

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on this you know we have all these

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worker rights movements that manage that

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we are able to work eight hours a day

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and have eight hours to do whatever we

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want and eight hours to sleep

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I don't think most of you do this anyway

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but but let's assume everyone works from

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9 to 5 like like like would be the

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traditional approach this means two3 of

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the day there's no one at the office

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and your workloads are running there

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development environments test

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environments we testing it with test

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testing stuff at midnight just turn it

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off use Cube down scaler annotate your

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deployments so so simple like that it

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will turn off when you leave the office

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it will turn on again when you when you

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come back and it's working you don't

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even need to care for it it does it

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every day it saves a lot of energy and

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it costs

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nothing last

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aspect we need information

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visibility it's like if I am traveling

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by train and my train is late or it

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fails what do I do if I did not have

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good data informing me providing me how

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how will be my

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Alternatives so this is where we came

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with KLA we wanted to grab the energy

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metrics and I will not go into detail in

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Kepler here because there are 50 at

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least 50 people in this room for sure

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that know in detail how Kepler um

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evaluates um energy statistics and

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transforms this into uh into wats uh

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but the interesting there is that you

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can

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actually get information from high level

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up to the container level so really have

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information on real on near real time on

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how much energy your single components

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are using and you know in grafana it's

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also possible you can make for example

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an annotation from your pipeline and

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Associate a certain change in your code

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with an impact on the

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consumption with we tried to roll it out

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we thought that's actually yeah great

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open source it's available let's just

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roll it out it was not so easy the first

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one was the Enterprise Readiness in

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terms of security there were some

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unneeded dependencies um there that we

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needed to

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remove it were able to give give a

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contribution which was

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great and the second one was well there

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were a lot of metrics so there was

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someone being called in the night on the

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on call duty and you know how people

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hate this no one like to be called in

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the night for because the monitoring

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system is overloaded so we had to reduce

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the um scraping interval which was by

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default on 3 seconds to much less and

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actually we don't want to keep also so

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much data so it's it's enough if we have

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10 20 seconds scraping to give this

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information about uh what is the effect

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of the different

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commits so data is the source of

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everything and we have seen on the left

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side where you see the green is the

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kubernetes pushing back to grafana and

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it allowed us to make this beautiful

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dashboards dashboards are always

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something beautiful I I find them at at

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least and I think many people love

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dashboards and um with this we had the

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first tool that really brings this in

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the hand of developers to to make a

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change and then we of course started

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getting more and more people interested

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on this and to gather the whole

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Cloud carbon footprint um data and we

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required a middle layer with our data L

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with the data with a data set with data

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governance that is in the middle and

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allows for other systems to couple and

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also create information for other

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potential agents like for example

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architecture management and Enterprise

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architecture management we see here um

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an example of the dashboard that we are

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building with our Enterprise arit

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management system system and um so um

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it's about really bringing the tools

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also to and and the information to the

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tools that are already being used by

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these people so as a final remarks I

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would like to say the first important

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thing is start start now it is urgent

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the issue is urgent and we are all in an

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early stage of knowing how to actually

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measure energy we have lack of

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information we don't know if this data

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is good but it's better as no data some

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information is better as no information

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so just start you will see how many

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people because really developers have an

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intrinsic motivation not really to save

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costs but everyone has an intrinsic

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motivation to care for our planet I

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believe it so just start small and

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beautiful and you will see how your

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community and your e system around the

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platforms and around green it will um

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grow and focus on empowerment focus on

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engine on the agents on the people that

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are on the all day taking decisions with

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their actions encourage developer

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initiative and their intrisic

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motivation so thank you very much um

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let's stick together if you want contact

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me or any of my colleagues that are also

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on this uh conference and um it was a

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pleasure to be here and I would like to

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to ask the moderator to come here and

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because I want you also to experience

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this wave yeah so let's do it one more

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time if you don't mind H so one two

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3 thank you very much have a nice day

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thank you so much

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[Music]

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Quon

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Related Tags
Climate ChangeDigital InnovationSustainable TechIndividual EmpowermentTech DevelopmentGreen InitiativesKubernetesEnergy EfficiencyDeveloper MotivationCorporate Responsibility