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riav/docker-manager

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Docker-Manager Version: v0.2.0

Docker image that manages other dockers in stadalone mode.

It is created as a service in swarm and runs and controls N dockers configured in docker-manager.cfg in standalone mode. So if the docker host drops or the service migrates for some reason, dockers managed by docker-manager are disconnected and started on the new host that the service is instantiated.

Available from docker hub as riav/docker-manager

How it does this:

Wiki - How it does this

Usage

docker service create --name test-01 --replicas 1 \
 --mount type=bind,source=/var/run/docker.sock,destination=/var/run/docker.sock \
 --mount type=bind,source=/logs-test-01,destination=/var/log/docker-manager \
 --mount type=bind,source=/docker-manager.cfg,destination=/docker-manager.cfg \
 --restart-condition any riav/docker-manager

For testing and development with docker api

docker run -d -v /var/run/docker.sock:/var/run/docker.sock riav/docker-manager --mode-run

docker-manager.cfg

Supports comment with #
# Docker apache with ip...
--name string Assign a name to the container
--hostname string Container host name
--cpu-period int Limit CPU CFS (Completely Fair Scheduler) period
--cpu-quota int Limit CPU CFS (Completely Fair Scheduler) quota
--cpu-rt-period int Limit CPU real-time period in microseconds
--cpu-rt-runtime int Limit CPU real-time runtime in microseconds
-c, --cpu-shares int CPU shares (relative weight)
--cpus decimal Number of CPUs
--cpuset-cpus string CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string MEMs in which to allow execution (0-3, 0,1)
--net, --network string Connect a container to a network
--ip string IPv4 address (e.g., 172.30.100.104)
--ip6 string IPv6 address (e.g., 2001:db8::33)
--mac-address string Container MAC address (e.g., 92:d0:c6:0a:29:33)
*For a correct syntax, first declare the network (--net) and then (--ip) and/or (--ip6) and/or (--mac-address), if you want to specify.
-e, --env list Set environment variables
-l, --label list Set meta data on a container
--kernel-memory bytes Kernel memory limit (support b, k, m, g)
-m, --memory bytes Memory limit (support b, k, m, g)
--memory-reservation bytes Memory soft limit (support b, k, m, g)
--memory-swap bytes Swap limit equal to memory plus swap: '-1' to enable unlimited swap (support b, k, m, g)
--memory-swappiness int Tune container memory swappiness (0 to 100) (default -1)
--entrypoint string Overwrite the default ENTRYPOINT of the image
--oom-kill-disable Disable OOM Killer
--oom-score-adj int Tune host's OOM preferences (-1000 to 1000)
--pids-limit int Tune container pids limit (set -1 for unlimited)
--privileged Give extended privileges to this container
--read-only Mount the container's root filesystem as read only
--restart string Restart policy to apply when a container exits. Required argument (always, unless-stopped, on-failure)
--rm(implicit) Automatically remove the container when it exits. Used by default if --restart is not declared
--shm-size bytes Size of /dev/shm (support b, k, m, g)
--storage-opt list Storage driver options for the container
-v, --volume list Bind mount a volume

Example:

#Test-01
--name test-01 -v /root.txt:/root.txt --privileged -e FOO=bar --label test.version=1.0 --memory 2g \
--net lan --ip 192.168.1.100 \
--net net-swarm centos:6 sleep infinity

About

Docker image running as service in swarm, that manages other dockers in stadalone mode(docker run).

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