v1.15.0

This release adds the ability to remove nodes older than a certain age and bumps a number of packages.

🗒️ Changelog

• Bump golang.org/x/net from 0.19.0 to 0.23.0 by @dependabot in #238
• add the ability to remove nodes older than a certain age even when the node group has reached the min by @awprice in #240
• update to kubernetes 1.28, go 1.22 by @awprice in #243
• attempt to fix up docker push action by @awprice in #244

Full Changelog: v1.14.1...v1.15.0

🐳 Container Image

ghcr.io/atlassian/escalator:v1.15.0

v1.14.1

What's Changed

• Dockerfile: Set default value for buildarg ENVVAR in #237

Full Changelog: v1.14.0...v1.14.1

v1.14.0

This release bumps a number of packages as well as some doc changes.

🗒️ Changelog

• bring readme up to date by @awprice in #228
• bump client-go to v0.25.11 by @dtnyn in #230
• Bump golang.org/x/net from 0.8.0 to 0.17.0 by @dependabot in #232
• Update client-go version to v0.26.10 by @vcatlassian in #233
• Update client-go to v0.27.11 by @vincentportella in #234
• Bump aws-sdk-go v1.50.33 by @hligit in #235
• Bump google.golang.org/protobuf from 1.31.0 to 1.33.0 by @dependabot in #236

🐳 Container Image

ghcr.io/atlassian/escalator:v1.14.0

v1.13.2

This release bumps the tool chain to Go 1.20 and bumps version of other dependencies, as well as some minor changes.

🗒️ Changelog

#214 - Bump github.com/aws/aws-sdk-go from 1.33.0 to 1.34.0
#215 - Bump github.com/prometheus/client_golang from 1.5.1 to 1.11.1
#218 - Bump golang.org/x/net from 0.0.0-20211209124913-491a49abca63 to 0.7.0
#222 - Update docker-publish workflow, disable provenance when building images
#223 - Ensure all node removal and taint log messages contain nodegroup fields
#225 - Ensure that scale-ups always occur when there are starved pods
#227 - Upgrade go version to 1.20

🐳 Container Image

ghcr.io/atlassian/escalator:v1.13.2

v1.13.1

This release bumps the tool chain from Go 1.17 to Go 1.19 and pins container base image to Alpine 3.16, and fixes documentation.

🗒️ Changelog

#210 - docs: remove scale to zero gotcha - Thanks @omjadas
#211 - Update golangci-lint.yml
#212 - Dockefile: Bump golang and Alpine

🐳 Container Image

ghcr.io/atlassian/escalator:v1.13.1

v1.13.0

This release fixes a bug comparing empty pod affinity expressions, bumps the tool chain from Go 1.14 to Go 1.17 and Kuberentes packages to 1.22, and introduces building of arm64 multi-arch container image.

🗒️ Changelog

#209 - Default Pod Selector ignores Pods with affinity set to empty struct - Thanks @decayofmind
#205 - Build arm64 multi-arch Docker images
#206 - Bump versions of Go and dependent libraries

🐳 Container Image

ghcr.io/atlassian/escalator:v1.13.0

v1.12.0

This release ensures Escalator considers initContainers and pod overhead when calculating pod requests. Escalator will now be more accurate in those edge cases. We migrated the CI/CD system to Github Actions and GCR for images. Additionally, thanks to @haugenj, Escalator now terminates orphaned instances for AWS Fleet.

🗒️ Changelog

• #203 - Consider initContainers when calculating a pod's requests
• #201 - Include pod overhead (if set) when calculating a pods requests
• #197 - Migrate to Github Actions and GCR
• #194 - Terminate orphaned instances from CreateFleet requests

🐳 Container Image

Note: From this version forward escalator images are published to ghcr.io instead of Dockerhub

ghcr.io/atlassian/escalator:v1.12.0

v1.11.0

This release adds the ability for Escalator to tag Auto Scaling Groups and Fleet requests. See nodegroup config to enable. Make sure to update your IAM policy to allow tagging.

🗒️ Changelog

• #193 - Add tags to Auto Scaling Group and Fleet request

🐳 Docker Image

atlassian/escalator:v1.11.0

v1.10.0

This release updates dependencies, updates Kubernetes client dependencies from v1.13 to v1.18, builds on Go 1.14, moves to Leases instead of ConfigMaps for leader election, introduces support for AWS Spot instance types, and adds a feature to keep specific nodes safe from deletion with an annotation.

🗒️ Changelog

• #185 - Update project dependencies (See go module file for current dependencies)
• Updates to use Kubernetes client libraries v1.18.1 - Previously v1.13
• #178 - Removed unused Namespace Indexing on watch cache. Will decrease memory usage on high churn namespace clusters
• Release is built on Go v1.14 now
• Switches to use Lease object for Leader Election as part of Kubernetes v1.18 client upgrade. See the RBAC for the new rbac to support creating the lease instead of ConfigMap
• #183 - Adds support for AWS Spot instances with Fleet - Thanks to @haugenj
• #184 - Adds feature to stop specific nodes from being terminated with annotations - See Annotating nodes

⚠️ Update RBAC if using leader election

As part of the upgrade to Kubernetes client libraries v1.18.1, Escalator now uses Leases to perform leader election instead of ConfigMaps. If using RBAC and Leader Election, make sure to give Escalator the permissions to access these new object types. You can find an updated RBAC example here. There are no other changes needed for escalator to start using Leases.

🐳 Docker Image

atlassian/escalator:v1.10.0

v1.9.0

This release adds support for iam:AssumeRoleWithWebIdentity with OIDC provider by updating the AWS SDK from v1.17.5 to v1.25.40.

Changelog

Update AWS SDK to support iam:AssumeRoleWithWebIdentity functionality: #179 #180

Docker Image

atlassian/escalator:v1.9.0