EVEREST-633 Use PGO stable channel (#282)

* EVEREST-633 install monitoring stack with install command

By moving to a multi-namespace everest-operator installation we
configured the operator group of the percona-everest namespace to have N
target namespaces. The VM Operator doesn't support multi-namespaces so
we can't deploy it to the same namespace as the everest-operator.
Therefore we install it onto a separate namespace for managing
everything monitoring related.

* EVEREST-633 remove monitoring command

* EVEREST-633 Update everest-operator go mod

* EVEREST-633 Update percona-everest-backend go mod

* EVEREST-633 forbid installs in the monitoring namespace

* EVEREST-633 use PGO stable channel

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/hashicorp/go-version v1.6.0
 	github.com/operator-framework/api v0.20.0
 	github.com/operator-framework/operator-lifecycle-manager v0.26.0
-	github.com/percona/everest-operator v0.6.0-dev1.0.20240207102146-b96be266f4d9
+	github.com/percona/everest-operator v0.6.0-dev1.0.20240207144724-d5253b875e28
 	github.com/percona/percona-everest-backend v0.5.1-0.20240205094045-e23451782e1a
 	github.com/spf13/cobra v1.8.0
 	github.com/spf13/viper v1.18.1

go.sum

@@ -539,8 +539,8 @@ github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/9
 github.com/pelletier/go-toml v1.7.0/go.mod h1:vwGMzjaWMwyfHwgIBhI2YUM4fB6nL6lVAvS1LBMMhTE=
 github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4=
 github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
-github.com/percona/everest-operator v0.6.0-dev1.0.20240207102146-b96be266f4d9 h1:M8vHkH1ITw2KP/2MZVeDzcrB0jq8ZbuhRB3ttUxhwqU=
-github.com/percona/everest-operator v0.6.0-dev1.0.20240207102146-b96be266f4d9/go.mod h1:45pGpvWrPy495qiQqxNuOJor4wif+vTTTJP4Qee8qZk=
+github.com/percona/everest-operator v0.6.0-dev1.0.20240207144724-d5253b875e28 h1:N9dZVyeXzUTK+xRdz9DBcaWj3X6oUPpezEwdH2jT4cg=
+github.com/percona/everest-operator v0.6.0-dev1.0.20240207144724-d5253b875e28/go.mod h1:45pGpvWrPy495qiQqxNuOJor4wif+vTTTJP4Qee8qZk=
 github.com/percona/percona-backup-mongodb v1.8.1-0.20230920143330-3b1c2e263901 h1:BDgsZRCjEuxl2/z4yWBqB0s8d20shuIDks7/RVdZiLs=
 github.com/percona/percona-backup-mongodb v1.8.1-0.20230920143330-3b1c2e263901/go.mod h1:fZRCMpUqkWlLVdRKqqaj001LoVP2eo6F0ZhoMPeXDng=
 github.com/percona/percona-everest-backend v0.5.1-0.20240205094045-e23451782e1a h1:2CZcbM4NWnKq3/gE5OySzKMiJhjMwARa6tegJ2XIT48=

pkg/install/install.go

@@ -61,7 +61,7 @@ const (
 	everestOperatorChannel = "stable-v0"
 	pxcOperatorChannel     = "stable-v1"
 	psmdbOperatorChannel   = "stable-v1"
-	pgOperatorChannel      = "fast-v2"
+	pgOperatorChannel      = "stable-v2"
 	vmOperatorChannel      = "stable-v0"
 
 	// catalogSourceNamespace is the namespace where the catalog source is installed.