New features in Nelm v1.12.0-v1.19.1

[shurup]

Nelm has seen significant progress in the last four months. The highlights are:

• a major refactoring;
• 60(!) new features;
• many annoying issues resolved.

At this point, we consider Nelm v1 stable and complete enough, which gives us the green light to start working on Nelm v2 and the Nelm operator. Another huge ongoing activity is the proposal of a Go templates alternative in Nelm (#497), which we announced in #513 and is currently being implemented in #502.

In the meantime, below is a summary of the changes we have made in Nelm since v1.12.0.

7 new annotations

• werf.io/delete-policy [doc]
• werf.io/delete-propagation [doc]
• werf.io/ownership [doc]
• werf.io/deploy-on [doc]
• werf.io/log-regex-skip [doc]
• werf.io/log-regex-skip-for-<container> [doc]
• werf.io/show-logs-only-for-number-of-replicas [doc]

48 new CLI flags

• --set-json
• --set-literal
• --set-runtime-json
• --delete-propagation
• --extra-apiversions
• --no-final-tracking
• --no-notes
• --no-remove-manual-changes
• --provenance-keyring
• --provenance-strategy
• --release-labels
• --release-info-annotations
• --runtime-labels
• --save-graph-to
• --templates-allow-dns
• --release-storage-sql-connection

Diff flags:

• --diff-context-lines
• --show-insignificant-diffs
• --show-sensitive-diffs
• --show-verbose-crd-diffs
• --show-verbose-diffs

Chart repo auth flags:

• --chart-repo-basic-password
• --chart-repo-basic-username
• --chart-repo-ca
• --chart-repo-cert
• --chart-repo-key
• --chart-repo-pass-creds
• --chart-repo-request-timeout
• --chart-repo-url

Kube auth flags:

• --kube-auth-password
• --kube-auth-provider-config
• --kube-auth-provider
• --kube-auth-username
• --kube-ca-data
• --kube-cert-data
• --kube-cert
• --kube-context-cluster
• --kube-context-user
• --kube-impersonate-group
• --kube-impersonate-uid
• --kube-impersonate-user
• --kube-key-data
• --kube-key
• --kube-proxy-url
• --kube-request-timeout
• --kube-token-path

Other improvements

• nelm release plan install shows reason for blind apply
• Resources do not appear in the tracking table at the beginning of the deployment, but when they are actually deployed
• By default, recreate non-hook Jobs on "field is immutable" error
• By default, display logs only from a single replica
• NELM_FEAT_CLEAN_NULL_FIELDS=true removes null keys from manifests to improve Helm 3 compatibility (will be default in v2)
• Major refactoring to improve Nelm maintainability and extensibility

36 bug fixes

• chart render shows hooks only if they have pre-install or post-install
• panic: interface conversion: plan.OperationConfig
• plan panic and json diffs instead of yaml
• plan shows nothing if only tracking ops in plan
• bad handling of context cancellation in install
• broken diffs with object: in plan
• canceled operations not displayed at the end of deployment
• correct release planning
• deploy report not showing all operations
• docker hub creds might leak in pod events
• empty Release.Info.First(Last)Deployed
• error "werf.io/show-logs-only-for-containers", expected integer value
• error too many arguments in call to chartutil.ToRenderValues
• error unable to acquire lock if install to new namespace
• error undefined: helmdownloader.VerificationStrategyString
• failures in init containers of Jobs ignored
• git-go security vulnerability
• hooks cleaned up too early
• hooks with delete policy before-creation deleted too early
• improve diffs in plan output
• improve output of experimental release list
• invalid helm.sh/hook causes panic in render
• logs stop showing after 4 hours
• new release created even if no changes
• no Auth Provider found for name ""
• null or empty fields might fail resource deploys
• on release install resources deleted in parallel with deployments with potential races
• panic unknown VerificationStrategyString value
• panic if apiserver connection lost
• panic if failure/rollback plan fails
• panic in release plan install
• panics if logboek context not initialized
• release namespace deletes after stopping being part of a release
• unnecessary resource/release updates
• version 0.0.0
• webhooks not readying