Deploy an air-gapped workload on Tanzu Application Platform

This topic for developers guides you through deploying your first workload on Tanzu Application Platform (commonly known as TAP) in an air-gapped environment.

For information about installing Tanzu Application Platform in an air-gapped environment, see Install Tanzu Application Platform in an air-gapped environment.

What you will do

Create a workload from Git.
Create a basic supply chain workload.
Create a testing supply chain workload.
Create a testing scanning supply chain workload.

Prerequisites

Before you begin, a Platform operator must configure the air-gapped environment using Namespace Provisioner. For instructions, see Work with Git repositories in air-gapped environments with Namespace Provisioner.

Create a workload from Git

To create a workload from Git through HTTPS, follow these steps:

(Optional) To pass in login credentials for a Git repository with the certificate authority (CA) certificate, create a file called git-credentials.yaml. For example:
```
apiVersion: v1
kind: Secret
metadata:
  name: git-ca
  # namespace: default
type: Opaque
stringData:
  username: USERNAME
  password: PASSWORD
  caFile: |
    CADATA
```
Where:
- USERNAME is the user name.
- PASSWORD is the password.
- CADATA is the PEM-encoded CA certificate for the Git repository.

To pass in a custom settings.xml for Java, create a file called settings-xml.yaml. For example:

apiVersion: v1
kind: Secret
metadata:
  name: settings-xml
type: service.binding/maven
stringData:
  type: maven
  provider: sample
  settings.xml: |
    <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
        <mirrors>
            <mirror>
                <id>reposilite</id>
                <name>Tanzu seal Internal Repo</name>
                <url>https://reposilite.tap-trust.cf-app.com/releases</url>
                <mirrorOf>*</mirrorOf>
            </mirror>
        </mirrors>
        <servers>
            <server>
                <id>reposilite</id>
                <username>USERNAME</username>
                <password>PASSWORD</password>
            </server>
        </servers>
    </settings>

Apply the file:

kubectl create -f settings-xml.yaml -n DEVELOPER-NAMESPACE

Create a basic supply chain workload

Next, create your basic supply chain workload.

To pass the CA certificate in when you create the workload, run:

tanzu apps workload create APP-NAME --git-repo  https://GITREPO --git-branch BRANCH --type web --label app.kubernetes.io/part-of=CATALOGNAME --yes --param-yaml buildServiceBindings='[{"name": "settings-xml", "kind": "Secret"}]' --param "gitops_ssh_secret=git-ca"

Create a testing supply chain workload

For instructions about creating a workload with the testing supply chain, see Install OOTB Supply Chain with Testing.

To add the Tekton supply chain to the cluster, apply the following YAML to the cluster:

apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: developer-defined-tekton-pipeline
  labels:
    apps.tanzu.vmware.com/pipeline: test     # (!) required
spec:
  params:
    - name: source-url                       # (!) required
    - name: source-revision                  # (!) required
  tasks:
    - name: test
      params:
        - name: source-url
          value: $(params.source-url)
        - name: source-revision
          value: $(params.source-revision)
      taskSpec:
        params:
          - name: source-url
          - name: source-revision
        steps:
          - name: test
            image: MY-REGISTRY/gradle
            script: |-
              cd `mktemp -d`

Where MY-REGISTRY is your container image registry. Relocate all the images given in the pipeline YAML to your private container registry.

Create the workload by running:

tanzu apps workload create APP-NAME --git-repo  https://GITURL --git-branch BRANCH --type web --label app.kubernetes.io/part-of=CATALOGNAME --yes --param-yaml --label apps.tanzu.vmware.com/has-tests=true buildServiceBindings='[{"name": "settings-xml", "kind": "Secret"}]'

To instead pass the CA certificate when you create the workload, run:

tanzu apps workload create APP-NAME --git-repo  https://GITREPO --git-branch BRANCH --type web --label app.kubernetes.io/part-of=CATALOGNAME --yes --param-yaml --label apps.tanzu.vmware.com/has-tests=true buildServiceBindings='[{"name": "settings-xml", "kind": "Secret"}]' --param "gitops_ssh_secret=git-ca"

Create a testing scanning supply chain workload

For instructions about creating a workload with the testing and scanning supply chain, see Install OOTB Supply Chain with Testing and Scanning.

In addition to the prerequisites given at Prerequisites, follow Using Grype in offline and air-gapped environments before workload creation.

Create workload by running:

tanzu apps workload create APP-NAME --git-repo  https://GITURL --git-branch BRANCH --type web --label app.kubernetes.io/part-of=CATALOGNAME --yes --param-yaml --label apps.tanzu.vmware.com/has-tests=true buildServiceBindings='[{"name": "settings-xml", "kind": "Secret"}]'

To instead pass the CA certificate when you create the workload, run:

tanzu apps workload create APP-NAME --git-repo  https://GITREPO --git-branch BRANCH --type web --label app.kubernetes.io/part-of=CATALOGNAME --yes --param-yaml --label apps.tanzu.vmware.com/has-tests=true buildServiceBindings='[{"name": "settings-xml", "kind": "Secret"}]' --param "gitops_ssh_secret=git-ca"