Update carvel docs

Author: jvalkeal

src/carvel/docs/examples/kapp-controller-install/README.adoc

@@ -19,5 +19,5 @@ Deploy controller:
 kapp deploy \
   -a kc \
   -y \
-  -f https://github.com/vmware-tanzu/carvel-kapp-controller/releases/download/v0.28.0/release.yml
+  -f https://github.com/vmware-tanzu/carvel-kapp-controller/releases/latest/download/release.yml
 ----

src/carvel/docs/examples/secretgen-controller-install/README.adoc

@@ -19,7 +19,7 @@ Deploy controller:
 kapp deploy \
   -a sg \
   -y \
-  -f https://github.com/vmware-tanzu/carvel-secretgen-controller/releases/download/v0.5.0/release.yml
+  -f https://github.com/vmware-tanzu/carvel-secretgen-controller/releases/latest/download/release.yml
 ----
 
 Deploy secrets:

src/carvel/docs/examples/tanzu-external-postgres/README.adoc

@@ -0,0 +1,51 @@
+ifdef::env-github[]
+:tip-caption: :bulb:
+:note-caption: :information_source:
+:important-caption: :heavy_exclamation_mark:
+:caution-caption: :fire:
+:warning-caption: :warning:
+endif::[]
+ifndef::env-github[]
+endif::[]
+
+[[examples-tanzu-external-kafka]]
+== Tanzu External Kafka
+In this example you use _Tanzu CLI_ and external postgres database.
+
+Deploy postgres operator using https://postgres-operator.readthedocs.io[Zalando Postgres Operator]
+
+Deploy postgres instance.
+
+[source, bash]
+----
+kubectl create -f examples/tanzu-external-postgres/postgres-dataflow.yml
+----
+
+Setup _Dataflow_ package repo:
+
+[source, bash]
+----
+tanzu package repository add scdf-repo --url springcloud/scdf-repo:2.10.0-SNAPSHOT
+
+tanzu package repository list
+  NAME        REPOSITORY                            STATUS               DETAILS
+  scdf-repo   springcloud/scdf-repo:2.10.0-SNAPSHOT Reconcile succeeded
+
+tanzu package available list
+  NAME                   DISPLAY-NAME  SHORT-DESCRIPTION
+  scdf.tanzu.vmware.com  scdf          Spring Cloud Data Flow
+
+tanzu package available list scdf.tanzu.vmware.com
+  NAME                   VERSION         RELEASED-AT
+  scdf.tanzu.vmware.com  2.10.0-SNAPSHOT
+----
+
+Get password for database and update values yml and install:
+
+[source, bash]
+----
+tanzu package install scdf-demo \
+  --package-name scdf.tanzu.vmware.com \
+  --version 2.10.0-SNAPSHOT \
+  --values-file examples/tanzu-external-postgres/minikube-values.yml
+----

src/carvel/docs/examples/tanzu-external-postgres/minikube-values.yml

@@ -0,0 +1,19 @@
+scdf:
+  deploy:
+    database:
+      enabled: false
+  server:
+    service:
+      type:
+        NodePort
+    database:
+      url: jdbc:postgresql://${POSTGRES-DATAFLOW_SERVICE_HOST}:${POSTGRES-DATAFLOW_SERVICE_PORT}/scdf
+      username: scdf
+      password: <pw created by controller>
+      driverClassName: org.postgresql.Driver
+  skipper:
+    database:
+      url: jdbc:postgresql://${POSTGRES-DATAFLOW_SERVICE_HOST}:${POSTGRES-DATAFLOW_SERVICE_PORT}/scdf
+      username: scdf
+      password: <pw created by controller>
+      driverClassName: org.postgresql.Driver

src/carvel/docs/examples/tanzu-external-postgres/postgres-dataflow.yml

@@ -0,0 +1,18 @@
+apiVersion: "acid.zalan.do/v1"
+kind: postgresql
+metadata:
+  name: postgres-dataflow
+  namespace: default
+spec:
+  teamId: "postgres"
+  volume:
+    size: 1Gi
+  numberOfInstances: 1
+  users:
+    scdf:
+    - superuser
+    - createdb
+  databases:
+    scdf: scdf
+  postgresql:
+    version: "14"