Cluster operator is responsible for controlling the reconciling process of CR HarborCluster that is a top level resource owning the Harbor CR and the CRs of Harbor's dependent services. Its primary flow is apply the Harbor CR and start Harbor CR's reconciling process when the related dependent services CR required in the spec are ready. The apply processes of the related dependent services CR are handled in a concurrent way.
Combination of the conditions that indicates the status of Harbor as well as status of its dependent service CRs such as postgresql, redisfailover and minio tenant leads to the current state of the HarborCluster resource.
Here are the conditions involved in the status combination process:
| Condition | Description |
|---|---|
StorageReady |
in-cluster storage minio service is ready |
DatabaseReady |
in-cluster database postgresql is ready |
CacheReady |
in-cluster cache redis is ready |
ServiceReady |
the harbor is ready |
NOTE: condition
ConfigurationReadyindicates if the cfgMap based Day2 configuration has been successfully applied. But it does not take account into the combination of the overall status.
The overall status dimensions and the conditions of its establishment is listed in the table shown below:
| Status | Conditions |
|---|---|
healthy |
4 conditions are all True |
unhealthy |
at least one of the 4 conditions is False |
creating |
Otherwise |
The reconcile loop is triggered by a Kubernetes event when the HarborCluster Resource or relevant resources owned by that HarborCluster changes.
Event received +----------------------+
------------------->| Reconcile |
+----------+-----------+
|
| True
Deleted? ------------>Exit
|
|
v
Start service deploy group
+-------------------------------+----------------------------+
| | |
| | |
| | |
+----------------v---------------+ +-----------+-----------+ +-----------v---------+
| PostgreSQL Reconcile | | Redis Reconcile | | Minio Reconcile |
+----------------+---------------+ +-----------+-----------+ +-----------+---------+
| | |
| | |
| | |
| | |
v v v
Apply or update Apply or update Apply or update
| | |
| | |
| | |
| | |
| v |
+--------------------> Any error occurred?<------------------+
| |
| NO | YES
| +----------------------------> Exit
| |
v NO |
All services are ready?------------------> Exit |
| | |
| YES | |
| | |
| | |
v | |
+----------------------+ | |
| Harbor Reconcile | | |
+----------+-----------+ | |
| | |
| | |
| | |
v | |
Apply or update? | |
| | |
| | |
| | |
| | |
v YES | |
Any error occurred? -----------> Exit | |
| | | |
| | | |
| NO | | |
| | | |
v | | |
Completed | | |
| | | |
| | | |
| | | |
| | | |
+--------------+--------------+ | | |
| Set status & conditions <---------+-------+-----+
+-----------------------------+