Commit Graph

27 Commits

Author SHA1 Message Date
Oleksii Kliukin 611cfe96d6 Fix an issue when not assigning the merge result.
Add some tests.
2017-12-04 10:49:25 +01:00
Oleksii Kliukin 6dcd074ea0 Allow per-cluster setting of a docker image.
Add dockerImage cluster configuration parameter that overrides global
operator defaults when set to a non-empty value.
2017-11-14 11:53:04 +01:00
Georg Kunz 47dd766fa7 Add node toleration config to PodSpec (#151)
* Add node toleration config to PodSpec

This allows to taint nodes dedicated to Postgres and prevents other pods from running on these nodes.

* Document taint and toleration setup

And remove setting from default operator ConfigMap

* Allow to overwrite tolerations with Postgres manifest
2017-11-02 19:10:44 +01:00
Murat Kabilov 3b32265258 Set status of the cluster on sync fail/success 2017-10-12 15:10:42 +02:00
Murat Kabilov a35e9c6119 move from tpr to crd 2017-10-06 15:12:08 +02:00
Murat Kabilov 00194d0130 create dbs on cluster create 2017-10-04 16:24:27 +03:00
Oleksii Kliukin 8b85935a7a Allow cloning clusters from the operator. (#90)
Allow cloning clusters from the operator.

The changes add a new JSON node `clone` with possible values `cluster`
and `timestamp`. `cluster` is mandatory, and setting a non-empty
`timestamp` triggers wal-e point in time recovery. Spilo and Patroni do
the whole heavy-lifting, the operator just defines certain variables and
gathers some data about how to connect to the host to clone or the
target S3 bucket.

As a minor change, set the image pull policy to IfNotPresent instead
of Always to simplify local testing.

Change the default replication username to standby.
2017-09-08 16:47:03 +02:00
Murat Kabilov 1f8b37f33d Make use of kubernetes client-go v4
* client-go v4.0.0-beta0
* remove unnecessary methods for tpr object
* rest client: use interface instead of structure pointer
* proper names for constants; some clean up for log messages
* remove teams api client from controller and make it per cluster
2017-07-25 15:25:17 +02:00
Oleksii Kliukin 00150711e4 Configure load balancer on a per-cluster and operator-wide level (#57)
* Deny all requests to the load balancer by default.
* Operator-wide toggle for the load-balancer.
* Define per-cluster useLoadBalancer option.

If useLoadBalancer is not set - then operator-wide defaults take place. If it
is true - the load balancer is created, otherwise a service type clusterIP is
created.

Internally, we have to completely replace the service if the service type
changes. We cannot patch, since some fields from the old service that will
remain after patch are incompatible with the new one, and handling them
explicitly when updating the service is ugly and error-prone. We cannot
update the service because of the immutable fields, that leaves us the only
option of deleting the old service and creating the new one. Unfortunately,
there is still an issue of unnecessary removal of endpoints associated with
the service, it will be addressed in future commits.

* Revert the unintended effect of go fmt

* Recreate endpoints on service update.

When the service type is changed, the service is deleted and then
the one with the new type is created. Unfortnately, endpoints are
deleted as well. Re-create them afterwards, preserving the original
addresses stored in them.

* Improve error messages and comments. Use generate instead of gen in names.
2017-06-30 13:38:49 +02:00
Murat Kabilov a9d746878b fix golint warn 2017-06-08 15:52:01 +02:00
Oleksii Kliukin dc36c4ca12 Implement replicaLoadBalancer boolean flag. (#38)
The flag adds a replica service with the name cluster_name-repl and
a DNS name that defaults to {cluster}-repl.{team}.{hostedzone}.

The implementation converted Service field of the cluster into a map
with one or two elements and deals with the cases when the new flag
is changed on a running cluster
(the update and the sync should create or delete the replica service).
In order to pick up master and replica service and master endpoint
when listing cluster resources.

* Update the spec when updating the cluster.
2017-06-07 13:54:17 +02:00
Murat Kabilov f7aaf8863d Change maintenance window format 2017-05-30 09:56:10 +02:00
Oleksii Kliukin afce38f6f0 Fix error messages (#27)
Use lowercase for kubernetes objects
Use %v instead of %s for errors
Start error messages with a lowercase letter.
2017-05-22 14:12:06 +02:00
Murat Kabilov d34273543e Fix the golint, gosimple warnings 2017-05-18 17:38:54 +02:00
Murat Kabilov 356be8f0f1 skip clusters with invalid spec 2017-05-16 16:46:37 +02:00
Oleksii Kliukin 1c4bce86df Avoid "bulk-comparing" pod resources during sync. (#109)
* Avoid "bulk-comparing" pod resources during sync.

First attempt to fix bogus restarts due to the reported mismatch
of container resources where one of the resources is an empty struct,
while the other has all fields set to nil.

In addition, add an ability to set limits and requests per pod, as well as the operator-level defaults.
2017-05-12 11:41:35 +02:00
Oleksii Kliukin 47e3e29a56 Add version label to the cluster. (#96)
* Add version label to the cluster.

According to the STUPS team the daemon that exports logs to scalyr
stops the export if the version label is missing.

* Move label names to constants. 

* Run go fmt
2017-05-12 11:41:34 +02:00
Murat Kabilov 08c0e3b6dd Use unified type for the namespaced object names 2017-05-12 11:41:34 +02:00
Murat Kabilov 79fdba4ac7 make sure name of the cluster matches format {teamname}-{clustername} 2017-05-12 11:41:34 +02:00
Oleksii Kliukin 71b93b4cc2 Feature/infrastructure roles (#91)
* Add infrastructure roles configured globally.

Those are the roles defined in the operator itself. The operator's
configuration refers to the secret containing role names, passwords
and membership information. While they are referred to as roles, in
reality those are users.

In addition, improve the regex to filter out invalid users and
make sure user secret names are compatible with DNS name spec.

Add an example manifest for the infrastructure roles.
2017-05-12 11:41:33 +02:00
Murat Kabilov dd2ed5ff9d Add team name to tpr object metadata name 2017-05-12 11:41:33 +02:00
Murat Kabilov c2d2a67ad5 Get config from environment variables;
ignore pg major version change;
get rid of resources package;
2017-05-12 11:41:29 +02:00
Murat Kabilov 79a6726d4d Increase logging verbosity, restructure code 2017-05-12 11:41:28 +02:00
Murat Kabilov ae77fa15e8 Pod Rolling update
introduce Pod events channel;
add parsing of the MaintenanceWindows section;
skip deleting Etcd key on cluster delete;
use external etcd host;
watch for tpr/pods in the namespace of the operator pod only;
2017-05-12 11:41:25 +02:00
Murat Kabilov 6e2d64bd50 Create human users from teams api 2017-05-12 11:37:09 +02:00
Murat Kabilov 58506634c4 Create pg users 2017-05-12 11:37:09 +02:00
Murat Kabilov abb1173035 Code refactor 2017-05-12 11:37:09 +02:00