MartijnVisser opened a new pull request, #29177:
URL: https://github.com/apache/flink/pull/29177
## What is the purpose of the change
Azure Pipelines agent 5.279.0 stopped mapping `/var/run/docker.sock` into
job containers on Linux, so every testcontainers based test in a container job
fails with "Could not find a valid Docker environment". The nightly
`test_cron_azure` legs have failed this way since 2026-09-04.
The other Azure stages still pass only because the ASF self-hosted agents
are on 5.278.0. They break the same way once those are upgraded. Fork pipelines
use `azure-pipelines.yml` on hosted agents and are affected already.
## Brief change log
* Set `mapDockerSocket: true` on the container resource in both pipeline
definitions
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
It cannot be verified through a PR build. `azure-pipelines.yml` only
contains the `ci` and `ci_release` stages, so no PR run exercises `cron_azure`.
It needs a nightly or a manual run. The last green nightly, build 78606, shows
`-v "/var/run/docker.sock":"/var/run/docker.sock"` on its `docker create` line
and build 79017 does not, with the six other mounts unchanged.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
---
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Generated-by: Claude Code (Claude Opus 5)
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