Can't chown/chmod files

[NilsIrl]

When the postgres image tries to chown/chmod files things fail. Not sure what the fix is. Probably related to overlayfs

Also doesn't work with pivotalrabbitmq/perf-test

[NilsIrl]

We're not the first to hit this issue: docker-library/postgres#116

[NilsIrl]

Tried without overlayfs and had the same issue.

[kskarthik]

tried running nginx image:

Looks like i have similar issue

Am i doing it right, or need to pass any flags ?

sk@moon:~$ ./n
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2024/03/07 17:48:25 [emerg] 1#1: chown("/var/cache/nginx/client_temp", 101) failed (22: Invalid argument)
nginx: [emerg] chown("/var/cache/nginx/client_temp", 101) failed (22: Invalid argument)
sk@moon:~$ 

[NilsIrl]

For now you could inspire yourself from what people have come up for postgres: docker-library/postgres#116

You probably want to pass -v when calling ./n in order to bind some directories between the "host" and the container otherwise the container will not have access to your files.

[kskarthik]

@NilsIrl thank you! I was able to start the nginx with these flags but feels like nginx port binding is not applied to host ports

sk@moon:~$ ./n -s reload -v ~/nvar:/var/cache/nginx -v ~/nvar/run:/var/run &
[1] 4308
sk@moon:~$ /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf
10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf
/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh
/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh
/docker-entrypoint.sh: Configuration complete; ready for start up
2024/03/11 05:53:56 [notice] 1#1: signal process started

[NilsIrl]

nginx port binding is not applied to host ports

This probably depends on your nginx configuration. Are you sure that you are using the correct port number? Are you sure the interface is correct?

I doubt it would be able to bind to port 80 without extra permissions.

[kskarthik]

Are you sure the interface is correct?

I did not change anything in the nginx config, just trying to use it as is.

[NilsIrl]

What nginx image are you using?

[kskarthik]

sk@moon:~$ dockerc --image docker://nginx --output nginx

[NilsIrl]

This has been fixed in the latest release as long as you have the uidmap package / newuidmap/newgidmap binaries installed. Otherwise if running the executable as root it should also work.