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helmfile/test/integration/test-cases/cli-overwrite-environment-values.sh
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Aditya Menon 4f275b3667 feat: add Helm 4 support while maintaining Helm 3 compatibility (#2262)
This commit adds comprehensive support for Helm 4 while maintaining
full backward compatibility with Helm 3. The implementation includes:

- Updated helm version detection to support both Helm 3 and Helm 4
- Added HELMFILE_HELM4 environment variable to control Helm version
- Modified helm execution paths to handle version-specific binaries
- Updated helm plugin installation to support split architecture

- Helm 4: Uses split plugin architecture (3 separate .tgz files)
  - helm-secrets.tgz
  - helm-secrets-getter.tgz
  - helm-secrets-post-renderer.tgz
- Helm 3: Continues using single plugin installation
- Updated Dockerfiles, CI workflows, and core installation code

- Helm 4 requires post-renderers to be plugins, not executable scripts
- Created Helm plugin structure for integration tests
- Updated helmfile.yaml templates to dynamically select renderer type
- Added test plugins: add-cm, add-cm1, add-cm2

- Updated integration tests for Helm 3/4 compatibility
- Created Helm 4 variant expected output files
- Fixed test determinism issues (repo cleanup between iterations)
- Added version-specific output filtering for warnings/messages

- Updated workflows to test both Helm 3 and Helm 4
- Matrix testing across Helm versions
- Updated helm-diff to v3.14.0 for compatibility

- Updated README and docs with Helm 4 information
- Added migration guidance
- Updated version requirements

All changes are backward compatible - existing Helm 3 users will
see no behavior changes.



fix: update Helm 4 lint expected output to match filtered output

The grep filter removes the semver warning, so the expected output
should not include it. Updated lint-helm4 files to match the filtered
output (warning removed, no extra blank line).

Signed-off-by: Aditya Menon <amenon@canarytechnologies.com>
2025-11-19 07:49:30 +08:00

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cli_overwrite_environment_values_input_dir="${cases_dir}/cli-overwrite-environment-values/input"
cli_overwrite_environment_values_output_dir="${cases_dir}/cli-overwrite-environment-values/output"
cli_overwrite_environment_values_tmp=$(mktemp -d)
cli_overwrite_environment_values_reverse=${cli_overwrite_environment_values_tmp}/cli.environment.override.build.yaml
case_title="cli overwrite environment values"
test_start "$case_title"
info "Comparing ${case_title} for output ${cli_overwrite_environment_values_reverse} with ${cli_overwrite_environment_values_output_dir}/overwritten.yaml"
for i in $(seq 10); do
info "Comparing build/cli-overwrite-environment-values #$i"
${helmfile} -f ${cli_overwrite_environment_values_input_dir}/input.yaml.gotmpl template --state-values-set ns=test3 --state-values-set-string imageTag=1.23.3,zone="zone1,zone2" > ${cli_overwrite_environment_values_reverse} || fail "\"helmfile template\" shouldn't fail"
diff -u ${cli_overwrite_environment_values_output_dir}/output.yaml ${cli_overwrite_environment_values_reverse} || fail "\"helmfile template\" should be consistent"
done
test_pass "cli overwrite environment values for v1"