I'm trying to execute shell command in docker-compose.yml. Code is:
command: bash -c mkdir /opt/wa/usr/install_templates
When I do:
sudo docker-compose up serviceA
it gives me :
serviceA | mkdir: missing operand
When you use bash -c, it runs the first string after the -c flag. See this SO answer for more information. Docker is reading your command bash -c mkdir /path/ and your bash command is just running mkdir in a bash subshell, causing that error.
You don't need to put bash -c before your commands in a docker-compose file. The Docker engine will handle running it in a shell for you and you can simply write the command you want to be run. I'd suggest replacing your command with this:
command: mkdir /opt/wa/usr/install_templates
Alternatively, you could try putting the entire command into a string if you want to force the command to be run in bash:
command: bash -c "mkdir /opt/wa/usr/install_templates"
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