Running with Docker/Podman: Permission Denied

When I run the Docker image with Docker or Podman I get the following error

› podman run -it -v "$(pwd)":/data:z minlag/mermaid-cli -i /data/diagram.mmd
node:fs:582
  handleErrorFromBinding(ctx);
  ^

Error: EACCES: permission denied, open '/data/diagram.mmd.svg'
    at Object.openSync (node:fs:582:3)
    at Object.writeFileSync (node:fs:2143:35)
    at /home/mermaidcli/node_modules/@mermaid-js/mermaid-cli/index.bundle.js:169:10
    at Generator.next (<anonymous>)
    at step (/home/mermaidcli/node_modules/@mermaid-js/mermaid-cli/index.bundle.js:4:191)
    at /home/mermaidcli/node_modules/@mermaid-js/mermaid-cli/index.bundle.js:4:361
    at processTicksAndRejections (node:internal/process/task_queues:96:5) {
  errno: -13,
  syscall: 'open',
  code: 'EACCES',
  path: '/data/diagram.mmd.svg'
}

How can I run the CLI without root?

[MindaugasLaganeckas]

I will update the Known issues in README and close this issue. Please, reopen if you disagree.

[chebro]

@MindaugasLaganeckas i could replicate the issue on ubuntu, docker uses the host file permissions when using bind mounts so the (host) data directory doesn’t provide write access to the docker (mermaidcli) user.

i see two possible solutions to this (without modifying the dockerfile),

1. pass -u $UID at runtime. (as suggested by @fconil )
2. modify the permissions for the data directory to 777 that way user groups outside of the host user can have write access to it (but this is a security risk).