feat: OpenSearch security hardening#375
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May 22, 2026
1. Added `Run Hardening Tests` pipeline.
2. Added `PYTHONDONTWRITEBYTECODE=1` environment variable for all Python images.
3. Added `opensearch-service.defaultLabels` to all pods.
4. Actualized pod security context with {runAsUser: 1000, runAsGroup: 1000} and container security context with {readOnlyRootFilesystem: true} (all except OpenSearch).
5. OpenSearch: installed plugins in Dockerfile; used `/tmp` folder for `reconfiguration.sh` script; added `/usr/share/opensearch/logs` and `/tmp` empty directories.
6. OpenSearch Dashboards: added `/usr/share/opensearch-dashboards/data` and `/usr/share/opensearch-dashboards/optimize` empty directories.
7. Monitoring: moved logs from `/opt/elasticsearch-monitoring/exec-scripts` to `/tmp/monitoring/logs` folder; added `/tmp` empty directory.
8. TLS init: moved all files to ${OPENSEARCH_CONFIGS} folder; added `/opt/opensearch-tls-init/config` empty directory.
9. Tests: added `Test Container Hardening` test; fixed work with resource files in HA tests; added `/tmp` empty directory.
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Description
What's done:
Added
Run Hardening Testspipeline.Added
PYTHONDONTWRITEBYTECODE=1environment variable for all Python images.Added
opensearch-service.defaultLabelsto all pods.Actualized pod security context with {runAsUser: 1000, runAsGroup: 1000} and container security context with {readOnlyRootFilesystem: true} (all except OpenSearch).
OpenSearch: installed plugins in Dockerfile; used
/tmpfolder forreconfiguration.shscript; added/usr/share/opensearch/logsand/tmpempty directories.OpenSearch Dashboards: added
/usr/share/opensearch-dashboards/dataand/usr/share/opensearch-dashboards/optimizeempty directories.Monitoring: moved logs from
/opt/elasticsearch-monitoring/exec-scriptsto/tmp/monitoring/logsfolder; added/tmpempty directory.TLS init: moved all files to ${OPENSEARCH_CONFIGS} folder; added
/opt/opensearch-tls-init/configempty directory.Tests: added
Test Container Hardeningtest; fixed work with resource files in HA tests; added/tmpempty directory.