SDC Docker client troubleshooting guide

Modified: 18 Jun 2015 18:23 UTC
Stability: Unknown

"Couldn't read ca cert ... ca.pem: no such file or directory"

Your environment is setup to speak to a Docker on SDC

$ echo $DOCKER_CERT_PATH
/Users/trentm/.sdc/docker/admin
$ echo $DOCKER_HOST
tcp://10.88.88.5:2376
$ alias docker
alias docker='docker --tls'

but you get a "ca.pem" failure:

$ docker info
FATA[0000] Couldn't read ca cert /Users/trentm/.sdc/docker/admin/ca.pem: open /Users/trentm/.sdc/docker/admin/ca.pem: no such file or director

One possibility is that DOCKER_TLS_VERIFY is accidentally set:

$ echo $DOCKER_TLS_VERIFY
1

Unset it and try again:

$ unset DOCKER_TLS_VERIFY
$ docker info
Containers: 0
Images: 33
Storage Driver: sdc
 SDCAccount: admin
Execution Driver: sdc-0.1.0
Operating System: SmartDataCenter
Name: coal

Are you trying to connect to a TLS-enabled daemon without TLS?

You get a "TLS-enabled daemon without TLS" error:

$ docker info
FATA[0000] Get http:///var/run/docker.sock/v1.17/info: dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS

One possibility is that after running sdc-docker-setup.sh, did you run the export and alias commands in your shell.

Confirm that the env settings are missing:

$ echo $DOCKER_CERT_PATH

$ echo $DOCKER_HOST

$ alias docker
-bash: alias: docker: not found

Run the exports and alias for your SDC and account, example:

$ export DOCKER_CERT_PATH=/Users/localuser/.sdc/docker/jill
$ export DOCKER_HOST=tcp://165.225.168.25:2376
$ alias docker="docker --tls"

Result:

$ docker info
Containers: 0
Images: 0
Storage Driver: sdc
 SDCAccount: jill
Execution Driver: sdc-0.1.0
Operating System: SmartDataCenter
Name: us-east-1