Bug Report: vttestserver returns wrong result in version()

[GiedriusS]

Overview of the Issue

I see vttestserver:mysql57 returning the wrong version:

mysql -h127.0.0.1 -uroot --port 33577 -e "select version();"
+---------------+
| version()     |
+---------------+
| 8.0.30-Vitess |
+---------------+

Reproduction Steps

Run vttestserver with:

docker run --name=vttestserver \
  -p 33574:33574 \
  -p 33575:33575 \
  -p 33577:33577 \
  -e PORT=33574 \
  -e KEYSPACES=foo \
  -e NUM_SHARDS=1 \
  -e MYSQL_MAX_CONNECTIONS=70000 \
  -e MYSQL_BIND_HOST=0.0.0.0 \
  -e VTCOMBO_BIND_HOST=0.0.0.0 \
  -e MYSQL_SERVER_VERSION=5.7.9-vitess \
  --health-cmd="mysqladmin ping -h127.0.0.1 -P33577" \
  --health-interval=5s \
  --health-timeout=2s \
  --health-retries=5 \
  vitess/vttestserver:mysql57

Check version:

mysql -h127.0.0.1 -uroot --port 33577 -e "select version();"

+---------------+
| version()     |
+---------------+
| 8.0.30-Vitess |
+---------------+

Expected to see 5.7.9-vitess here.

I see --mysql_server_version 5.7.9-vitess passed inside of the container so something must be wrong somewhere deeper than the container image itself.

Binary Version

N/A

Operating System and Environment details

N/A

Log Fragments

No response

[frouioui]

Hey @GiedriusS, we have dropped support for vitess/vttestserver:mysql57 a long time ago and removed the associated Dockerfile through #15827, the image:tag is still available on Dockerhub but no longer maintained. I don't think this will be fixed, I am closing this issue but feel free to re-open if needed