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🐳
File Permissions in Docker Images
Set correct permissions for files copied into Docker containers.
Níl gá le logáil isteach
| Read | Write | Execute | Value | |
|---|---|---|---|---|
| owner | 7 | |||
| group | 5 | |||
| other | 5 |
Octal (editable)
rwxr-xr-x
Symbolic
Command
$ chmod 755 filename
Common presets
Docker tips
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COPY in a Dockerfile preserves permissions. Use chmod in a RUN step (or COPY --chmod=755) so entrypoint scripts are executable.
💡
Running as a non-root user? Make sure app files are readable (and writable where needed) by that user's UID/GID.
🎯
Entrypoint and healthcheck scripts need the execute bit (755) or the container will fail to start.
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