Flag to skip all pull errors when pulling images.

Signed-off-by: Vojta Orgon <villlem@gmail.com>

compose/cli/main.py

@@ -270,6 +270,7 @@ class TopLevelCommand(Command):
         Usage: pull [options] [SERVICE...]
 
         Options:
+            --ignore-pull-failures  Pull what it can and ignores images with pull failures.
             --allow-insecure-ssl    Deprecated - no effect.
         """
         if options['--allow-insecure-ssl']:
@@ -277,6 +278,7 @@ class TopLevelCommand(Command):
 
         project.pull(
             service_names=options['SERVICE'],
+            ignore_pull_failures=options.get('--ignore-pull-failures')
         )
 
     def rm(self, project, options):

compose/project.py

@@ -311,9 +311,9 @@ class Project(object):
 
         return plans
 
-    def pull(self, service_names=None):
+    def pull(self, service_names=None, ignore_pull_failures=False):
         for service in self.get_services(service_names, include_deps=True):
-            service.pull()
+            service.pull(ignore_pull_failures)
 
     def containers(self, service_names=None, stopped=False, one_off=False):
         if service_names:

compose/service.py

@@ -769,7 +769,7 @@ class Service(object):
                 return True
         return False
 
-    def pull(self):
+    def pull(self, ignore_pull_failures=False):
         if 'image' not in self.options:
             return
 
@@ -781,7 +781,14 @@ class Service(object):
             tag=tag,
             stream=True,
         )
-        stream_output(output, sys.stdout)
+
+        try:
+            stream_output(output, sys.stdout)
+        except StreamOutputError as e:
+            if not ignore_pull_failures:
+                raise
+            else:
+                log.error(six.text_type(e))
 
 
 class Net(object):

contrib/completion/bash/docker-compose

@@ -212,7 +212,7 @@ _docker_compose_ps() {
 _docker_compose_pull() {
 	case "$cur" in
 		-*)
-			COMPREPLY=( $( compgen -W "--help" -- "$cur" ) )
+			COMPREPLY=( $( compgen -W "--help --ignore-pull-failures" -- "$cur" ) )
 			;;
 		*)
 			__docker_compose_services_from_image

contrib/completion/zsh/_docker-compose

@@ -237,6 +237,7 @@ __docker-compose_subcommand() {
         (pull)
             _arguments \
                 $opts_help \
+                '--ignore-pull-failures[Pull what it can and ignores images with pull failures.]' \
                 '*:services:__docker-compose_services_from_image' && ret=0
             ;;
         (rm)

docs/reference/pull.md

@@ -13,6 +13,9 @@ parent = "smn_compose_cli"
 
 ```
 Usage: pull [options] [SERVICE...]
+
+Options:
+--ignore-pull-failures  Pull what it can and ignores images with pull failures.
 ```
 
 Pulls service images.

tests/fixtures/simple-composefile/ignore-pull-failures.yml

@@ -0,0 +1,6 @@
+simple:
+  image: busybox:latest
+  command: top
+another:
+  image: nonexisting-image:latest
+  command: top

tests/integration/cli_test.py

@@ -97,6 +97,13 @@ class CLITestCase(DockerClientTestCase):
             'Pulling digest (busybox@'
             'sha256:38a203e1986cf79639cfb9b2e1d6e773de84002feea2d4eb006b52004ee8502d)...')
 
+    @mock.patch('compose.service.log')
+    def test_pull_with_ignore_pull_failures(self, mock_logging):
+        self.command.dispatch(['-f', 'ignore-pull-failures.yml', 'pull', '--ignore-pull-failures'], None)
+        mock_logging.info.assert_any_call('Pulling simple (busybox:latest)...')
+        mock_logging.info.assert_any_call('Pulling another (nonexisting-image:latest)...')
+        mock_logging.error.assert_any_call('Error: image library/nonexisting-image:latest not found')
+
     @mock.patch('sys.stdout', new_callable=StringIO)
     def test_build_plain(self, mock_stdout):
         self.command.base_dir = 'tests/fixtures/simple-dockerfile'