Helm Chart Modification for Offline/Internal Network Environments

[recharte]

Note

This issue was originally reported in percona/percona-helm-charts#773.
It has been migrated here as part of the repository move.

https://github.com/percona/percona-helm-charts/blob/561f0f50e59254cc4db04c56a70bd2432c19f576/charts/everest/charts/common/templates/_upgrade_checks.yaml.tpl#L122

https://github.com/percona/percona-helm-charts/blob/561f0f50e59254cc4db04c56a70bd2432c19f576/charts/everest/charts/common/templates/_upgrade_checks.yaml.tpl#L123

Currently, the upgrade_checks container in the Helm chart downloads dependencies at runtime (e.g., via apk and curl from GitHub). This can cause failures in offline or restricted internal networks.

Suggestion:

Pre-package the required tools (e.g., curl) and the everestctl binary into the container image.

Use environment variables or a ConfigMap to define versions, avoiding runtime downloads.

This would improve reliability for air-gapped or network-restricted deployments.

Example approach:

Build a custom image with everestctl and dependencies included.

Replace the runtime download logic with a direct execution of the pre-installed binary.

Let me know if you’d like assistance drafting the changes.

Thank you for considering this improvement!