240 Commits
Author SHA1 Message Date
Oleksii Kliukin da132ca1fc Do not rely on env vars for superuser role name.
Environment variables may not be set in Docker.
Instead, obtain the superuser role from the database.
2015-09-02 15:20:16 +02:00
Alexander Kukushkin a7f7a7bf58 Remove spurious print 2015-09-02 13:33:07 +02:00
Oleksii Kliukin a5f2ab6f88 Better SIGCHLD handling, use correct user name.
- Defer SIGCHLD processing until the later stage in order to allow
  subprocess to run its own reaping of children and return the correct
  exit code from the process called.

- When changing the password at startup, do not assume the user postgres.
2015-09-02 12:56:23 +02:00
Alexander Kukushkin c2aaa876d2 Merge branch 'feature/cloexec' of github.com:zalando/patroni into feature/python-etcd 2015-08-26 15:18:02 +02:00
Alexander Kukushkin 60a360a4da Reset _machines_cache before doing next load attempt 2015-08-26 15:17:24 +02:00
Alexander Kukushkin 353fc58bee Do not inherit rest api port on fork 2015-08-26 15:14:44 +02:00
Alexander Kukushkin 420176aa75 Merge branch 'master' of github.com:zalando/patroni into feature/python-etcd 2015-08-25 10:11:29 +02:00
Oleksii Kliukin 9d79be56df Merge pull request #8 from zalando/feature/external_backup
Move the functionality of restoring a replica from backup into an external script
2015-08-24 18:12:38 +02:00
Alexander Kukushkin befd33555d Refactor helpers/etcd.py
Work with etcd cluster via high-level python-etcd module.
Plus change all unit tests accordingly.
2015-08-24 16:58:08 +02:00
Oleksii Kliukin 29434e24ea Allow relative paths to external scripts. 2015-08-24 16:53:57 +02:00
Alexander Kukushkin 72043703f5 Small code cleanup 2015-08-17 16:06:48 +02:00
Alexander Kukushkin 4940665cea Update dcs.py 2015-08-11 12:01:21 +02:00
Feike Steenbergen a07a80806a Update postgresql.py
Make build_connstring truly static
2015-08-11 11:33:40 +02:00
Feike Steenbergen b0707c8ddd Merge branch 'master' of github.com:zalando/patroni into feature/external_backup
Conflicts:
	requirements-py2.txt
2015-08-11 11:27:53 +02:00
Feike Steenbergen e51ea4c1ca Merge pull request #4 from zalando/feature/lost-dcs-data
Run is_healthiest_node against last know healthy configuration of cluster
2015-08-11 11:22:46 +02:00
Feike Steenbergen a11a41796b Merge pull request #6 from zalando/feature/six
use six module to support python 2 and 3 instead of conditional imports
2015-08-11 11:20:30 +02:00
Feike Steenbergen b7bedf6b06 Update dcs.py 2015-08-11 11:16:52 +02:00
Alexander Kukushkin ce6d1c69d8 Merge branch 'master' of github.com:zalando/patroni into feature/six 2015-08-11 10:19:35 +02:00
Alexander Kukushkin e9d46b0adb Merge branch 'master' of github.com:zalando/patroni into feature/lost-dcs-data 2015-08-11 10:19:07 +02:00
Alexander Kukushkin d2f956e87f Write some documentation in a dockstring format for AbstractDCS class 2015-08-11 10:17:55 +02:00
Oleksii Kliukin 5d1d59a42b Add mock-based unit tests for the restore module.
- add unit tests for the restore module
- additional dependencies in requirement
- harden the code that calls restore callbacks
- remove WAL-E related code from postgresql.py
2015-08-07 16:05:17 +02:00
Oleksii Kliukin fd884a53a9 Multiple small fixes:
- Do delete trigger file in the patroni itself.
- Fix the typo in the datadir member.
- Add #! at the top of the python script.
2015-08-03 15:51:40 +02:00
Oleksii Kliukin 2089a123c2 fix line too long warning. 2015-08-03 11:48:02 +02:00
Oleksii Kliukin 7f2dcc0a95 Move replica creation code into a separte file. So far, only the class that makes replicas with pg_basebackup is called. 2015-08-03 11:44:11 +02:00
Oleksii Kliukin a0fdd6398f Cosmetic changes: avoid magic strings in action names, name the parameter passed to the callback 'scope' for consistency. 2015-07-30 10:17:17 +02:00
Oleksii Kliukin 5171964758 Merge branch 'master' into feature/callbacks 2015-07-27 16:19:03 +02:00
Oleksii Kliukin 115ba1d9ae Make sure postgresql.stop also return True if pg_ctl stop returned 0. 2015-07-27 11:23:08 +02:00
Oleksii Kliukin 201f9bf4b2 Make sure role check during callbacks does not accidentially modify the cluster state (is_promoted flag or trigger file). 2015-07-27 11:08:19 +02:00
Oleksii Kliukin dac3d7997f Change a typo. 2015-07-24 10:47:26 +02:00
Oleksii Kliukin c9c678fb5b Pass scope, the cluster name, instead of the name, which is the instance name, to the callback. 2015-07-23 16:16:22 +02:00
Oleksii Kliukin e9934be9aa Do not terminate on callback failure.
Show the error if a callback command fails and move on.
Set the executable bit for the aws callback.
2015-07-17 17:26:28 +02:00
Oleksii Kliukin a11d94aff5 Pass text names of cluster roles to the script.
Seems better than passing a bool flag and
converting it from/to string.
2015-07-17 15:39:34 +02:00
Oleksii Kliukin 33b5e1b22e Make sure is_leader is False does not trigger the leader re-check. 2015-07-17 15:22:21 +02:00
Oleksii Kliukin 11004f8c48 Be more robust on callbacks when cluster is down.
For 'on_stop' or 'on_restart' callbacks we cannot
call is_leader, because the cluster would be stopped.

Instead, call is_leader before running a callback.
In addition, make the call_nowait more robust by handling
the exceptions related to the DB cluster unavailability.
2015-07-17 11:19:05 +02:00
Alexander Kukushkin 9df783cf9d use six module to support python 2 and 3 instead of conditional imports 2015-07-15 12:03:28 +02:00
Alexander Kukushkin b54119b918 Run is_healthiest_node against last know healthy configuration of cluster
This will help to survive when everything was wiped from configuration
store.
2015-07-15 11:20:25 +02:00
Oleksii Kliukin d8aa1ff849 fix a typo. 2015-07-14 09:22:49 +02:00
Oleksii Kliukin f734272f3f Process the command paths relative to the patroni dir correctly, fix the error of not supplying a callback action to the actual command. 2015-07-13 11:45:25 +02:00
Oleksii Kliukin 6d0a9bbdc0 create a new directory for callback scripts and move aws volume tags there. 2015-07-13 10:25:42 +02:00
Oleksii Kliukin c0cc590938 Remove usage of AWS.py from Patroni
Functionality provided by that module will be achieved via callbacks.
- fix a typo in aws.py
- fix some mixups of old code and new callbacks in postgresql.py
2015-07-10 12:58:37 +02:00
Oleksii Kliukin 78f0b16543 Enable aws.py to run as a stand-alone program. 2015-07-10 10:57:24 +02:00
Alexander Kukushkin 71fce312c2 Enforce flake8 check 2015-07-10 10:53:04 +02:00
Alexander Kukushkin dcad7a3229 Add exhibitor support
List of ZooKeeper nodes could be periodically updated from Exhibitor
Since we know that each Exhibitor accompanies one ZooKeeper node, list
of Exhibitor nodes also maintained. Exhibitor assumes that all ZooKeeper
nodes are using the same client port, 2181. The same assumption is valid
for Exhibitor, it should always listen on the same port on all nodes.

Original list of Exhibitor nodes is cached and used as a fallback when
it failed ito query information with using maintained list.
2015-07-10 10:46:33 +02:00
Oleksii Kliukin 2c1627c2f3 get rid of yaml module, since AWS instance-identity natively sends JSON. 2015-07-10 10:33:07 +02:00
Oleksii Kliukin aa5a72fb37 Add on_start, on_stop, on_role_change, on_restart and on_reload callbacks. 2015-07-09 15:45:10 +02:00
Alexander Kukushkin c49580d6a7 Rename governor into patroni 2015-07-08 10:37:35 +02:00
Alexander Kukushkin 259c3ac341 Merge branch 'multidcs' of github.com:CyberDem0n/governor into feature/multidcs 2015-07-08 08:54:02 +02:00
Alexander Kukushkin a1f11fe2fe Remove unneeded class CurrentLeaderError 2015-07-08 08:53:08 +02:00
Alexander Kukushkin 54400c6dec Merge branch 'multidcs' of github.com:CyberDem0n/governor into feature/multidcs
Conflicts:
	governor.py
	tests/test_governor.py
	tests/test_postgresql.py
2015-07-08 08:47:26 +02:00
Alexander Kukushkin 43b12af3a7 Implement possibility to work against ZooKeeper
This implementation is using the same interface (AbstractDCS) as Etcd
class. It means that there should be no problem to implement another
plugin to work agains Consul for example.
2015-07-07 12:45:14 +02:00