Docker container that listen for connection on http port and run command on host. It can be used to start or stop a parent container ( after a given time ).
You have a big container/stack that consumes a lot of memory and dont need to be running 24x7.
NOTE: D.o.d. and target must be on same host.
Run listener on host
./files/host-listener.sh &
Start docker on demand using variables do define target container and target port.
docker run -p 8081:8081 -e LISTEN_PORT=8081 -e CLIENT_REFRESH_SECS=60 -e HOST_COMMAND_ON_START="docker start 429c28e5e606" -e HOST_COMMAND_ON_STOP="docker stop 429c28e5e606" -v /tmp/pipe-dod:/pipe -d -e CONTAINER_LIFETIME=5m -it drecchia/docker-on-demand:latest
Now when a http request is made at port 8081:
1. the d.o.d. container will die
2. host-listener will run $HOST_COMMAND_ON_START
3. host-listener will fork a sleep thread waiting for $CONTAINER_LIFETIME
4. on timeout host-listener will run $HOST_COMMAND_ON_STOP
5. whe d.o.d. container will be started again.
Content type
Image
Digest
sha256:125a82cbb…
Size
1.1 MB
Last updated
almost 11 years ago
docker pull drecchia/docker-on-demand