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Merge pull request #67 from orchardup/link-services-to-themselves

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Link services to themselves
This commit is contained in:
Ben Firshman 2014-01-31 02:46:52 -08:00
commit 62607f4f04
3 changed files with 16 additions and 2 deletions
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6
docs/cli.md
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@ -47,6 +47,12 @@ For example:
Note that this will not start any services that the command's service links to. So if, for example, your one-off command talks to your database, you will need to run `fig up -d db` first. Note that this will not start any services that the command's service links to. So if, for example, your one-off command talks to your database, you will need to run `fig up -d db` first.
One-off commands are started in new containers with the same config as a normal container for that service, so volumes, links, etc will all be created as expected. The only thing different to a normal container is the command will be overridden with the one specified and no ports will be created in case they collide.
Links are also created between one-off commands and the other containers for that service so you can do stuff like this:
$ fig run db /bin/sh -c "psql -h \$DB_1_PORT_5432_TCP_ADDR -U docker"
## scale ## scale
Set number of containers to run for a service. Set number of containers to run for a service.

3
fig/service.py
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@ -212,6 +212,9 @@ class Service(object):
for container in service.containers(): for container in service.containers():
links.append((container.name, container.name)) links.append((container.name, container.name))
links.append((container.name, container.name_without_project)) links.append((container.name, container.name_without_project))
for container in self.containers():
links.append((container.name, container.name))
links.append((container.name, container.name_without_project))
return links return links
def _get_container_options(self, override_options, one_off=False): def _get_container_options(self, override_options, one_off=False):

9
tests/service_test.py
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@ -155,8 +155,13 @@ class ServiceTest(DockerClientTestCase):
web.start_container() web.start_container()
self.assertIn('figtest_db_1', web.containers()[0].links()) self.assertIn('figtest_db_1', web.containers()[0].links())
self.assertIn('db_1', web.containers()[0].links()) self.assertIn('db_1', web.containers()[0].links())
db.stop(timeout=1)
web.stop(timeout=1) def test_start_container_creates_links_to_its_own_service(self):
db1 = self.create_service('db')
db2 = self.create_service('db')
db1.start_container()
db2.start_container()
self.assertIn('db_1', db2.containers()[0].links())
def test_start_container_builds_images(self): def test_start_container_builds_images(self):
service = Service( service = Service(