Kubernetes cost optimization
Right-sizing and autoscaling. This post digs into the topic, drawing on recent discussion from Hacker News, Reddit, and the wider community.
The conversation that prompted this post is linked in the sources. I have tried to capture the substance of the discussion rather than just summarize it, because the comments are usually where the real insight lives.
What happened
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Autoscaling is not a substitute for capacity planning. It reacts to load; it does not predict it.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Serverless is great until it isn't. Cold starts, concurrency limits, and vendor lock-in are real costs that show up at scale.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Backups are not disaster recovery. Test your restores or you do not have backups.
The shared responsibility model means the cloud secures the infrastructure and you secure everything else. Most breaches are in the everything else.
Serverless is great until it isn't. Cold starts, concurrency limits, and vendor lock-in are real costs that show up at scale.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Spot instances are free money if your workload can tolerate interruption. Most batch and async workloads can.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Spot instances are free money if your workload can tolerate interruption. Most batch and async workloads can.
Why it matters
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Managed databases trade operational burden for cost and flexibility. Know what you are giving up.
Reserved instances and savings plans reward commitment. If your workload is stable, not using them is leaving money on the table.
IAM is the foundation of cloud security. Get it wrong and nothing else matters. Get it right and most attacks become much harder.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Reserved instances and savings plans reward commitment. If your workload is stable, not using them is leaving money on the table.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Practical takeaways
- The cloud is just someone else's computer, and that someone else is very good at charging you for convenience.
- Spot instances are free money if your workload can tolerate interruption.
- Infrastructure as code is not optional at scale.
- The cloud is just someone else's computer, and that someone else is very good at charging you for convenience.
- Spot instances are free money if your workload can tolerate interruption.
- Spot instances are free money if your workload can tolerate interruption.
- Spot instances are free money if your workload can tolerate interruption.
- Autoscaling is not a substitute for capacity planning.
- Spot instances are free money if your workload can tolerate interruption.
- Spot instances are free money if your workload can tolerate interruption.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Backups are not disaster recovery. Test your restores or you do not have backups.
Serverless is great until it isn't. Cold starts, concurrency limits, and vendor lock-in are real costs that show up at scale.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
IAM is the foundation of cloud security. Get it wrong and nothing else matters. Get it right and most attacks become much harder.
Managed databases trade operational burden for cost and flexibility. Know what you are giving up.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Autoscaling is not a substitute for capacity planning. It reacts to load; it does not predict it.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Managed databases trade operational burden for cost and flexibility. Know what you are giving up.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Sources
This post is informed by discussion on kubernetes.io and related threads on Hacker News and Reddit. Primary source: https://kubernetes.io/docs/.
Spot instances are free money if your workload can tolerate interruption. Most batch and async workloads can.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
The shared responsibility model means the cloud secures the infrastructure and you secure everything else. Most breaches are in the everything else.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Serverless is great until it isn't. Cold starts, concurrency limits, and vendor lock-in are real costs that show up at scale.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Backups are not disaster recovery. Test your restores or you do not have backups.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Serverless is great until it isn't. Cold starts, concurrency limits, and vendor lock-in are real costs that show up at scale.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Spot instances are free money if your workload can tolerate interruption. Most batch and async workloads can.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Reserved instances and savings plans reward commitment. If your workload is stable, not using them is leaving money on the table.
Reserved instances and savings plans reward commitment. If your workload is stable, not using them is leaving money on the table.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Backups are not disaster recovery. Test your restores or you do not have backups.
The shared responsibility model means the cloud secures the infrastructure and you secure everything else. Most breaches are in the everything else.
Managed databases trade operational burden for cost and flexibility. Know what you are giving up.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Managed databases trade operational burden for cost and flexibility. Know what you are giving up.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Autoscaling is not a substitute for capacity planning. It reacts to load; it does not predict it.
Tagging is boring and essential. Without consistent tags, cost attribution is guesswork.
Networking is where cloud bills hide. Data transfer charges between regions and out to the internet add up fast.
Serverless is great until it isn't. Cold starts, concurrency limits, and vendor lock-in are real costs that show up at scale.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
Autoscaling is not a substitute for capacity planning. It reacts to load; it does not predict it.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
Spot instances are free money if your workload can tolerate interruption. Most batch and async workloads can.
Observability is the difference between knowing something is broken and knowing why. Invest in it before you need it.
The shared responsibility model means the cloud secures the infrastructure and you secure everything else. Most breaches are in the everything else.
Autoscaling is not a substitute for capacity planning. It reacts to load; it does not predict it.
The shared responsibility model means the cloud secures the infrastructure and you secure everything else. Most breaches are in the everything else.
Managed databases trade operational burden for cost and flexibility. Know what you are giving up.
Reserved instances and savings plans reward commitment. If your workload is stable, not using them is leaving money on the table.
Cloud cost is the new technical debt. Teams that do not track spend by service and team end up with bills that nobody can explain and nobody can reduce.
The shared responsibility model means the cloud secures the infrastructure and you secure everything else. Most breaches are in the everything else.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Spot instances are free money if your workload can tolerate interruption. Most batch and async workloads can.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.
IAM is the foundation of cloud security. Get it wrong and nothing else matters. Get it right and most attacks become much harder.
Infrastructure as code is not optional at scale. Clicking in the console is fine for learning and unacceptable for production.
The cloud is just someone else's computer, and that someone else is very good at charging you for convenience. The question is always whether the convenience is worth the markup.
Multi-region is not multi-cloud. Running in two AWS regions is redundancy. Running on AWS and GCP is strategy, and it is expensive.