Log (undef, "docker image hash is $docker_hash");
$docker_stream =~ s/^\.//;
my $docker_install_script = qq{
-if $docker_bin images -q --no-trunc --all | grep -xF \Q$docker_hash\E >/dev/null; then
- exit 0
+loaded() {
+ id=\$($docker_bin inspect --format="{{.ID}}" \Q$docker_hash\E) || return 1
+ echo "image ID is \$id"
+ [[ \${id} = \Q$docker_hash\E ]]
+}
+if loaded >&2 2>/dev/null; then
+ echo >&2 "image is already present"
+ exit 0
fi
-declare -a exit_codes=("\${PIPESTATUS[@]}")
-if [ 0 != "\${exit_codes[0]}" ]; then
- exit "\${exit_codes[0]}" # `docker images` failed
-elif [ 1 != "\${exit_codes[1]}" ]; then
- exit "\${exit_codes[1]}" # `grep` encountered an error
-else
- # Everything worked fine, but grep didn't find the image on this host.
- arv-get \Q$docker_locator$docker_stream/$docker_hash.tar\E | $docker_bin load
+echo >&2 "docker image is not present; loading"
+arv-get \Q$docker_locator$docker_stream/$docker_hash.tar\E | $docker_bin load
+if ! loaded >&2; then
+ echo >&2 "`docker load` exited 0, but image is not found (!)"
+ exit 1
fi
+echo >&2 "image loaded successfully"
};
my ($exited, $stdout, $stderr) = srun_sync(