SQLInstance connection secret extension and configuration enhancements

[ytsarev]

Description of your changes

• Propagate host, username and password as part of SQLInstance connection secret in symmetry to configuration-aws-database and configuration-azure-database
• Fix composed resource level connection secret names for DatabaseInstance to reflect engine properly
• Propagate connection secret from User.Sql
• Add SKIP_DELETE uptest capability for convenient testing
• Add upbound Database creation
• More secure DatabaseInstance configuration with disabling PublicIP address and public access for DatabaseInstance

Related (non-blocking) provider-upjet-gcp change crossplane-contrib/provider-upjet-gcp#501

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR, as appropriate.

How has this code been tested

make e2e SKIP_DELETE=--skip-delete
k get secret
NAME                                       TYPE                                DATA   AGE
configuration-gcp-database-mysql-conn      connection.crossplane.io/v1alpha1   4      95m
configuration-gcp-database-postgres-conn   connection.crossplane.io/v1alpha1   4      96m
k view-secret configuration-gcp-database-postgres-conn
Multiple sub keys found. Specify another argument, one of:
-> host
-> password
-> serverCACertificateCert
-> username

k view-secret configuration-gcp-database-mysql-conn
Multiple sub keys found. Specify another argument, one of:
-> host
-> password
-> serverCACertificateCert
-> username

[ytsarev]

/test-examples

[ytsarev]

Additionally tested e2e with the higher level platform-ref-gcp,

--- PASS: kuttl (773.27s)
    --- PASS: kuttl/harness (0.00s)
        --- PASS: kuttl/harness/case (772.75s)
PASS
14:00:41 [ OK ] running automated tests

 k get claim
NAME                                                                  SYNCED   READY   CONNECTION-SECRET                      AGE
sqlinstance.gcp.platform.upbound.io/platform-ref-gcp-database-mysql   True     True    platform-ref-gcp-database-mysql-conn   34m
sqlinstance.gcp.platform.upbound.io/platform-ref-gcp-db-postgres      True     True    platform-ref-gcp-db-conn-postgres      34m

NAME                                                  SYNCED   READY   CONNECTION-SECRET             AGE
cluster.gcp.platformref.upbound.io/platform-ref-gcp   True     True    platform-ref-gcp-kubeconfig   34m

NAME                                             SYNCED   READY   CONNECTION-SECRET             AGE
app.platform.upbound.io/platform-ref-gcp-ghost   True     True    platform-ref-gcp-ghost-conn   34m

➜  sa-up git:(main) ✗ k -n ghost get pod
NAME                                                  READY   STATUS    RESTARTS   AGE
platform-ref-gcp-ghost-8v46l-wgj2w-7464b9f6d8-gwvz7   1/1     Running   0          5m
➜  sa-up git:(main) ✗ k -n ghost logs -f platform-ref-gcp-ghost-8v46l-wgj2w-7464b9f6d8-gwvz7
ghost 11:57:56.80
ghost 11:57:56.81 Welcome to the Bitnami ghost container
ghost 11:57:56.81 Subscribe to project updates by watching https://github.com/bitnami/containers
ghost 11:57:56.81 Submit issues and feature requests at https://github.com/bitnami/containers/issues
ghost 11:57:56.81
ghost 11:57:56.82 INFO  ==> Configuring libnss_wrapper
ghost 11:57:56.84 INFO  ==> Validating settings in MYSQL_CLIENT_* env vars
ghost 11:57:56.88 WARN  ==> You set the environment variable ALLOW_EMPTY_PASSWORD=yes. For safety reasons, do not use this flag in a production environment.
ghost 11:57:56.88 INFO  ==> Ensuring Ghost directories exist
ghost 11:57:56.89 INFO  ==> Trying to connect to the database server
ghost 11:57:56.92 INFO  ==> Configuring database
ghost 11:57:57.00 INFO  ==> Setting up Ghost
ghost 11:57:58.27 INFO  ==> Configuring Ghost URL to http://upboundrocks.cloud/
ghost 11:57:58.32 INFO  ==> Passing admin user creation wizard
ghost 11:57:58.33 INFO  ==> Starting Ghost in background
ghost 11:58:25.33 INFO  ==> Stopping Ghost
ghost 11:58:26.44 INFO  ==> Persisting Ghost installation

ghost 11:58:26.54 INFO  ==> ** Ghost setup finished! **
ghost 11:58:26.57 INFO  ==> ** Starting Ghost **

Love open source? We’re hiring JavaScript Engineers to work on Ghost full-time.
https://careers.ghost.org

- Inspecting operating system

Sample ghos app is fully operational and can connect to the Mysql DatabaseInstance via the private network 👍

[ytsarev]

/test-examples