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When life's bad on Docker...
Russell Bateman |
This is where I'm going to jot down bad stuff that happens to me and how I fix it.
When life's bad on Docker...
...and other useful tips!
I keep doing this to myself. I reboot, then the Filebeat container won't come up. I use a /tmp link to /home/russ/dev/logs. That's gone when I bounce my box and I forget to recreate it. Then, after despairing and begging for help, I see this:
russ@moria:~/dev/orchestration$ docker service ls ID NAME MODE REPLICAS IMAGE 42uuxvag1d9g acme-consul replicated 1/1 artifactory.acme.net/consul:latest yyf85gi8qrnx acme_filebeat global 0/1 artifactory.acme.net/acme-filebeat:latest . . . russ@moria:~/dev/orchestration$ docker service ps acme_filebeat ID NAME DESIRED STATE CURRENT STATE ERROR 6sxuqgstde6g acme_filebeat.fw17z9s7l7lx5ukvcka04epzj Ready Preparing less than a second ago qnnu4tainvq6 \_ acme_filebeat.fw17z9s7l7lx5ukvcka04epzj Shutdown Rejected 3 seconds ago "invalid mount config for type..." ytirpcbev5p9 \_ acme_filebeat.fw17z9s7l7lx5ukvcka04epzj Shutdown Rejected 8 seconds ago "invalid mount config for type..." sj5su4rc6r20 \_ acme_filebeat.fw17z9s7l7lx5ukvcka04epzj Shutdown Rejected 13 seconds ago "invalid mount config for type..." w0yze0zlqbmd \_ acme_filebeat.fw17z9s7l7lx5ukvcka04epzj Shutdown Rejected 18 seconds ago "invalid mount config for type..."
"Invalid mount config for type..." is code for, "Duh, are you trying to mount something that doesn't even exist?" It asks the question, "What's in your docker-compose.yaml file?"
More "when life's bad on Docker"...
I don't know how to look for every error yet:
task: non-zero exit(1)
Is this EPERM? I haven't changed anything; what does the container have no permissions to touch/do?
russ@moria:~/dev/orchestration$ docker service ps acme_filebeat
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR
bmj1te600mbe \_ acme_filebeat.fw17z9s7l7lx5ukvcka04epzj .../acme-filebeat:latest moria Shutdown Failed 2 seconds ago "task: non-zero exit (1)"
Look at the container logs:
russ@moria:~/dev/orchestration$ docker-ps e470135464dc artifactory.acme.net/acme-filebeat:latest Created 6205b9d64e57 artifactory.acme.net/acme-filebeat:latest Exited (1) 5 seconds ago 2d8d8b49d933 artifactory.acme.net/acme-filebeat:latest Exited (1) 12 seconds ago b18f849d2e78 artifactory.acme.net/acme-filebeat:latest Exited (1) 20 seconds ago dd25165456af artifactory.acme.net/acme-filebeat:latest Exited (1) 27 seconds ago russ@moria:~/dev/orchestration$ docker logs 6205b9d64e57 . . . 2018-12-21T22:15:34.966Z ERROR instance/beat.go:743 Exiting: Error importing Kibana dashboards: fail to create the Kibana loader: Error creat...
Some useful Docker commands...
To stop, then remove a container: $ docker rm -f container-id To remove images: $ docker rmi image-id [ image-ids ] To gain access to the Docker repository on 10.10.11.239, in /etc/docker/daemon.json, put these contents: { "insecure-registries" : [ "10.10.11.239:5000" ] } $ docker image tag imagename:version ip-address:port/imagename:tag For example: $ docker image tag some-image:tag 10.10.11.239:5000/some-image:latest Tag an image with tag, latest: $ docker image push 10.10.11.239:5000/some-image:latest Discard unused Docker image layers (reducing worthless lines in docker image): $ docker rmi $(docker images --filter "dangling=true" -q --no-trunc)