How do you escape a comma in a user variable?
This breaks the functionality of the build. this example is based off the
defined example: https://packer.io/docs/builders/docker.html#run_command
The only difference is this is going through a user variable, which breaks
because the parsing has no way to escape the comma that has to be ignored.
{
"variables": {
"changes": "CMD [\"nginx\", \"-g\", \"daemon off;\"]"
},
"builders": [
{
"type": "docker",
"image": "ubuntu:16.04",
"run_command": ["-d", "{{.Image}}"],
"changes": "{{ user `changes`}}",
"commit": true
}
],
"post-processors": [
[
{
"type": "docker-tag",
"repository": "my/ubuntu",
"tag": "16.04"
}
]
]
}
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