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RunContainer() won't work if /tmp is noexec mounted #594

@jirib

Description

@jirib

func RunContainer(name string, image string, volumes []types.VolumeMount, extraArgs []string, cmd []string) error {

Found by a customer:

$ mgradm -c mgradm.yaml install podman foobar.example.com \
  --ssl-ca-intermediate=/etc/pki/trust/anchors/New_NAC-MTB.CRT \
  --ssl-ca-root=/etc/pki/trust/anchors/New_SSL-MTB.crt \
  --ssl-server-cert=/etc/pki/tls/foobar.example.com.crt \
  --ssl-server-key=/etc/pki/tls/foobar.example.com.key \
  --ssl-ca-root=/etc/pki/trust/anchors/BAR.example.com_ROOT-MTB.cer
12:45PM INF Welcome to mgradm
12:45PM INF Executing command: podman
Error: failed to run inspect script in host system: fork/exec /tmp/mgradm-1738905063/inspect.sh: permission denied

You should probably use prepend cmd with bash (or other shell). An example:

$ findmnt -no OPTIONS /tmp
rw,nosuid,nodev,noexec,nr_inodes=1048576,inode64
$ /tmp/script.sh
-bash: /tmp/script.sh: Permission denied
$ bash /tmp/script.sh
Hello World!

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