DOCKER SERVICE CREATE
Commande : docker service create
Usage: docker service create [OPTIONS] IMAGE [COMMAND] [ARG...]
Create a new service
Options:
--config config Specify configurations to expose to the service
--constraint list Placement constraints
--container-label list Container labels
--credential-spec credential-spec Credential spec for managed service account (Windows only)
-d, --detach Exit immediately instead of waiting for the service to converge
--dns list Set custom DNS servers
--dns-option list Set DNS options
--dns-search list Set custom DNS search domains
--endpoint-mode string Endpoint mode (vip or dnsrr) (default "vip")
--entrypoint command Overwrite the default ENTRYPOINT of the image
-e, --env list Set environment variables
--env-file list Read in a file of environment variables
--generic-resource list User defined resources
--group list Set one or more supplementary user groups for the container
--health-cmd string Command to run to check health
--health-interval duration Time between running the check (ms|s|m|h)
--health-retries int Consecutive failures needed to report unhealthy
--health-start-period duration Start period for the container to initialize before counting retries towards unstable (ms|s|m|h)
--health-timeout duration Maximum time to allow one check to run (ms|s|m|h)
--host list Set one or more custom host-to-IP mappings (host:ip)
--hostname string Container hostname
--init Use an init inside each service container to forward signals and reap processes
--isolation string Service container isolation mode
-l, --label list Service labels
--limit-cpu decimal Limit CPUs
--limit-memory bytes Limit Memory
--log-driver string Logging driver for service
--log-opt list Logging driver options
--mode string Service mode (replicated or global) (default "replicated")
--mount mount Attach a filesystem mount to the service
--name string Service name
--network network Network attachments
--no-healthcheck Disable any container-specified HEALTHCHECK
--no-resolve-image Do not query the registry to resolve image digest and supported platforms
--placement-pref pref Add a placement preference
-p, --publish port Publish a port as a node port
-q, --quiet Suppress progress output
--read-only Mount the container's root filesystem as read only
--replicas uint Number of tasks
--reserve-cpu decimal Reserve CPUs
--reserve-memory bytes Reserve Memory
--restart-condition string Restart when condition is met ("none"|"on-failure"|"any") (default "any")
--restart-delay duration Delay between restart attempts (ns|us|ms|s|m|h) (default 5s)
--restart-max-attempts uint Maximum number of restarts before giving up
--restart-window duration Window used to evaluate the restart policy (ns|us|ms|s|m|h)
--rollback-delay duration Delay between task rollbacks (ns|us|ms|s|m|h) (default 0s)
--rollback-failure-action string Action on rollback failure ("pause"|"continue") (default "pause")
--rollback-max-failure-ratio float Failure rate to tolerate during a rollback (default 0)
--rollback-monitor duration Duration after each task rollback to monitor for failure (ns|us|ms|s|m|h) (default 5s)
--rollback-order string Rollback order ("start-first"|"stop-first") (default "stop-first")
--rollback-parallelism uint Maximum number of tasks rolled back simultaneously (0 to roll back all at once) (default 1)
--secret secret Specify secrets to expose to the service
--stop-grace-period duration Time to wait before force killing a container (ns|us|ms|s|m|h) (default 10s)
--stop-signal string Signal to stop the container
-t, --tty Allocate a pseudo-TTY
--update-delay duration Delay between updates (ns|us|ms|s|m|h) (default 0s)
--update-failure-action string Action on update failure ("pause"|"continue"|"rollback") (default "pause")
--update-max-failure-ratio float Failure rate to tolerate during an update (default 0)
--update-monitor duration Duration after each task update to monitor for failure (ns|us|ms|s|m|h) (default 5s)
--update-order string Update order ("start-first"|"stop-first") (default "stop-first")
--update-parallelism uint Maximum number of tasks updated simultaneously (0 to update all at once) (default 1)
-u, --user string Username or UID (format: [:])
--with-registry-auth Send registry authentication details to swarm agents
-w, --workdir string Working directory inside the container
Créer un nouveau service en ligne de commande
docker service create [OPTIONS] image [command] [ARG...]
ex :
Ci-dessous nous créons un service constitué de 6 tâches réparties sur 4 nodes.
$ docker service create --name vote --publish 8080:80 --replicas 6 instavote/vote
w6oq3h8zshjb4rxglhax6b6us
overall progress: 6 out of 6 tasks
1/6: running [==================================================>]
2/6: running [==================================================>]
3/6: running [==================================================>]
4/6: running [==================================================>]
5/6: running [==================================================>]
6/6: running [==================================================>]
verify: Service converged
$ docker service ps vote
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
u6ft5zbc8xwz vote.1 instavote/vote:latest node3 Running Running 29 seconds ago
diftv07phzat vote.2 instavote/vote:latest node2 Running Running 27 seconds ago
k6qtg2kiewxx vote.3 instavote/vote:latest node3 Running Running 29 seconds ago
9t09sz9pr4e1 vote.4 instavote/vote:latest node4 Running Running 28 seconds ago
g7dbwtofnrmt vote.5 instavote/vote:latest node1 Running Running 26 seconds ago
m9vthhag9a1o vote.6 instavote/vote:latest node2 Running Running 27 seconds ago
$ docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
w6oq3h8zshjb vote replicated 6/6 instavote/vote:latest *:8080->80/tcp
Exemples divers :
$ docker service create --mode global --name redis2 redis:3.0.6 $ docker service create --name redis --replicas=5 redis:3.0.6 $ docker service create --name redis --secret secret.json redis:3.0.6 $ docker service create --name redis --hostname myredis redis:3.0.6
Créer un nouveau service en montant un volume
docker service create [OPTIONS] --mount type=volume|bind,,destination=/path/in/container[,options] image [command] [ARG...]
ex :
Volume nommé :
$ docker service create \
--name my-service \
--replicas 3 \
--mount type=volume,source=my-volume,destination=/path/in/container,volume-label="color=red",volume-label="shape=round" \
nginx:alpine
Volume anonyme :
$ docker service create \
--name my-service \
--replicas 3 \
--mount type=volume,destination=/path/in/container \
nginx:alpine
Volume de type bind :
$ docker service create \
--name my-service \
--mount type=bind,source=/path/on/host,destination=/path/in/container \
nginx:alpine
Créer un nouveau service en spécifiant le mappage de ports
Format court :
docker service create [OPTIONS] --publish port:port image [command] [ARG...]
Format long :
docker service create [OPTIONS] --publish published=port,target=port image [command] [ARG...]
ex :
Ci-dessous nous créons un service constitué de 6 tâches réparties sur 4 nodes.
$ docker service create --name my_web --replicas 3 --publish 8080:80 nginx
Equivaut à :
$ docker service create --name my_web --replicas 3 --publish published=8080,target=80 nginx