A base image to check and set hosts sysctl parameter.

docker build -t rawmind/alpine-sysctl:<version> .

• 0.1-1 (Dockerfile).

• SYSCTL_KEY="" # Mandatory: Set sysctl key.
• SYSCTL_VALUE=0 # Mandatory: Set sysctl key desired value.
• SYSCTL_FORCE=0 # Set to 1 to force sysctl overwrite key value.
• KEEP_ALIVE="0" # Set to 1 to keep container alive. (to run in k8s)

This image basically, upgrade host sysctl key value if it's lower than desired.

docker run -t \
  -e "SYSCTL_KEY=KEY" \
  -e "SYSCTL_VALUE=VALUE" \
  --privileged \
  rawmind/alpine-sysctl:<version> .