f6760151c4
* Support Elasticsearch v9 alongside v8 * Add CI workflow changes for Elasticsearch v8/v9 testing * Support Elasticsearch v7 in addition to v8/v9, add v7 CI test job Lowers the minimum supported ES version from 8 to 7 to avoid dropping v7 support in a dot release. Adds a dedicated CI job to verify v7 compatibility alongside the existing v8 and v9 (default) jobs. * Fix ES7 plugin install crash on cgroup v2 hosts * Fix ES 7 container startup on cgroup v2 Linux (GitHub Actions) ES 7 bundles JDK 11, which crashes with a NullPointerException in CgroupV2Subsystem.getMountPoint() on modern Linux kernels that use cgroup v2 (including GitHub Actions ubuntu-latest runners). The flag was already set during the Dockerfile RUN step, but not at runtime. Adding -XX:-UseContainerSupport to ES_JAVA_OPTS in docker-compose fixes the crash. The flag is harmless on ES 8/9 which ship JDK 17+ where the cgroup v2 bug is fixed (it simply opts out of container-aware JVM sizing). * Capture docker compose logs in CI test artifact * Use ES 7.17.29 for v7 CI test; remove cgroup v2 workarounds ES 7.17.0 bundled JDK 17.0.1 which had a cgroup v2 bug (CgroupV2Subsystem NPE) not fixable via -XX:-UseContainerSupport. ES 7.17.29 bundles JDK 22 where the bug is long fixed. Reverts the -XX:-UseContainerSupport workarounds added in the previous two commits as they were based on a wrong diagnosis and are no longer needed. --------- Co-authored-by: Mattermost Build <build@mattermost.com>
Mattermost is an open core, self-hosted collaboration platform that offers chat, workflow automation, voice calling, screen sharing, and AI integration. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React, runs as a single Linux binary, and relies on PostgreSQL. A new compiled version is released under an MIT license every month on the 16th.
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