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Chapter 6. Using credentials and configurations in workspaces


You can use your credentials and configurations in your workspaces.

To do so, mount your credentials and configurations to the Dev Workspace containers in the OpenShift cluster of your organization’s OpenShift Dev Spaces instance:

  • Mount your credentials and sensitive configurations as Kubernetes Secrets.
  • Mount your non-sensitve configurations as Kubernetes ConfigMaps.

If you need to allow the Dev Workspace Pods in the cluster to access container registries that require authentication, create an image pull Secret for the Dev Workspace Pods.

The mounting process uses the standard Kubernetes mounting mechanism and requires applying additional labels and annotations to your existing resources. Resources are mounted when starting a new workspace or restarting an existing one.

You can create permanent mount points for various components:

6.1. Mounting Secrets

To mount confidential data into your workspaces, use Kubernetes Secrets.

Using Kubernetes Secrets, you can mount usernames, passwords, SSH key pairs, authentication tokens (for example, for AWS), and sensitive configurations.

Mount Kubernetes Secrets to the Dev Workspace containers in the OpenShift cluster of your organization’s OpenShift Dev Spaces instance.

Prerequisites

  • An active oc session with administrative permissions to the destination OpenShift cluster. See Getting started with the CLI.
  • In your user project, you created a new Secret or determined an existing Secret to mount to all Dev Workspace containers.

Procedure

  1. Add the labels, which are required for mounting the Secret, to the Secret.

    $ oc label secret <Secret_name> \
            controller.devfile.io/mount-to-devworkspace=true \
            controller.devfile.io/watch-secret=true
  2. Optional: Use the annotations to configure how the Secret is mounted.

    Table 6.1. Optional annotations
    AnnotationDescription

    controller.devfile.io/mount-path:

    Specifies the mount path.

    Defaults to /etc/secret/<Secret_name>.

    controller.devfile.io/mount-as:

    Specifies how the resource should be mounted: file, subpath, or env.

    Defaults to file.

    mount-as: file mounts the keys and values as files within the mount path.

    mount-as: subpath mounts the keys and values within the mount path using subpath volume mounts.

    mount-as: env mounts the keys and values as environment variables in all Dev Workspace containers.

Example 6.1. Mounting a Secret as a file

apiVersion: v1
kind: Secret
metadata:
  name: mvn-settings-secret
  labels:
    controller.devfile.io/mount-to-devworkspace: 'true'
    controller.devfile.io/watch-secret: 'true'
  annotations:
    controller.devfile.io/mount-path: '/home/user/.m2'
data:
  settings.xml: <Base64_encoded_content>

When you start a workspace, the /home/user/.m2/settings.xml file will be available in the Dev Workspace containers.

With Maven, you can set a custom path for the settings.xml file. For example:

$ mvn --settings /home/user/.m2/settings.xml clean install

6.1.1. Creating image pull Secrets

To allow the Dev Workspace Pods in the OpenShift cluster of your organization’s OpenShift Dev Spaces instance to access container registries that require authentication, create an image pull Secret.

You can create image pull Secrets by using oc or a .dockercfg file or a config.json file.

6.1.1.1. Creating an image pull Secret with oc

Prerequisites

Procedure

  1. In your user project, create an image pull Secret with your private container registry details and credentials:

    $ oc create secret docker-registry <Secret_name> \
        --docker-server=<registry_server> \
        --docker-username=<username> \
        --docker-password=<password> \
        --docker-email=<email_address>
  2. Add the following label to the image pull Secret:

    $ oc label secret <Secret_name> controller.devfile.io/devworkspace_pullsecret=true controller.devfile.io/watch-secret=true

6.1.1.2. Creating an image pull Secret from a .dockercfg file

If you already store the credentials for the private container registry in a .dockercfg file, you can use that file to create an image pull Secret.

Prerequisites

  • An active oc session with administrative permissions to the destination OpenShift cluster. See Getting started with the CLI.
  • base64 command line tools are installed in the operating system you are using.

Procedure

  1. Encode the .dockercfg file to Base64:

    $ cat .dockercfg | base64 | tr -d '\n'
  2. Create a new OpenShift Secret in your user project:

    apiVersion: v1
    kind: Secret
    metadata:
      name: <Secret_name>
      labels:
        controller.devfile.io/devworkspace_pullsecret: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      .dockercfg: <Base64_content_of_.dockercfg>
    type: kubernetes.io/dockercfg
  3. Apply the Secret:

    $ oc apply -f - <<EOF
    <Secret_prepared_in_the_previous_step>
    EOF

6.1.1.3. Creating an image pull Secret from a config.json file

If you already store the credentials for the private container registry in a $HOME/.docker/config.json file, you can use that file to create an image pull Secret.

Prerequisites

  • An active oc session with administrative permissions to the destination OpenShift cluster. See Getting started with the CLI.
  • base64 command line tools are installed in the operating system you are using.

Procedure

  1. Encode the $HOME/.docker/config.json file to Base64.

    $ cat config.json | base64 | tr -d '\n'
  2. Create a new OpenShift Secret in your user project:

    apiVersion: v1
    kind: Secret
    metadata:
      name: <Secret_name>
      labels:
        controller.devfile.io/devworkspace_pullsecret: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      .dockerconfigjson: <Base64_content_of_config.json>
    type: kubernetes.io/dockerconfigjson
  3. Apply the Secret:

    $ oc apply -f - <<EOF
    <Secret_prepared_in_the_previous_step>
    EOF

6.1.2. Using a Git-provider access token

OAuth for GitHub, GitLab, Bitbucket, or Microsoft Azure Repos needs to be configured by the administrator of your organization’s OpenShift Dev Spaces instance. If your administrator could not configure it for OpenShift Dev Spaces users, the workaround is for you to use a personal access token. You can configure personal access tokens on the User Preferences page of your OpenShift Dev Spaces dashboard: https://<openshift_dev_spaces_fqdn>/dashboard/#/user-preferences?tab=personal-access-tokens, or apply it manually as a Kubernetes Secret in the namespace.

Mounting your access token as a Secret enables the OpenShift Dev Spaces Server to access the remote repository that is cloned during workspace creation, including access to the repository’s /.che and /.vscode folders.

Apply the Secret in your user project of the OpenShift cluster of your organization’s OpenShift Dev Spaces instance.

After applying the Secret, you can create workspaces with clones of private Git repositories that are hosted on GitHub, GitLab, Bitbucket Server, or Microsoft Azure Repos.

You can create and apply multiple access-token Secrets per Git provider. You must apply each of those Secrets in your user project.

Prerequisites

  • You have logged in to the cluster.

    Tip

    On OpenShift, you can use the oc command-line tool to log in to the cluster:

    $ oc login https://<openshift_dev_spaces_fqdn> --username=<my_user>

Procedure

  1. Generate your access token on your Git provider’s website.
  2. Encode your access token to Base64.

    Tip

    If you have the base64 command-line tools installed in the operating system, you can use the command line:

    $ echo -n '<your_access_token_string>' | base64

  3. Go to https://<openshift_dev_spaces_fqdn>/api/user/id in the web browser to get your OpenShift Dev Spaces user ID.
  4. Prepare a new OpenShift Secret.

    kind: Secret
    apiVersion: v1
    metadata:
      name: personal-access-token-<your_choice_of_name_for_this_token>
      labels:
        app.kubernetes.io/component: scm-personal-access-token
        app.kubernetes.io/part-of: che.eclipse.org
      annotations:
        che.eclipse.org/che-userid: <devspaces_user_id>1
        che.eclipse.org/scm-personal-access-token-name: <git_provider_name>2
        che.eclipse.org/scm-url: <git_provider_endpoint>3
        che.eclipse.org/scm-username: <git_provider_username>4
        che.eclipse.org/scm-organization: <git_provider_organization>5
    data:
      token: <Base64_encoded_access_token>
    type: Opaque
    1
    Your OpenShift Dev Spaces user ID.
    2
    The Git provider name: github or gitlab or bitbucket-server or azure-devops.
    3
    The Git provider URL.
    4
    The Git provider username. For azure-devops, the user’s email address.
    5
    This line is only applicable to azure-devops: your Git provider user organization.
  5. Visit https://<openshift_dev_spaces_fqdn>/api/kubernetes/namespace to get your OpenShift Dev Spaces user namespace as name.
  6. Switch to your OpenShift Dev Spaces user namespace in the cluster.

    Tip

    On OpenShift:

    • The oc command-line tool can return the namespace you are currently on in the cluster, which you can use to check your current namespace:

      $ oc project

    • You can switch to your OpenShift Dev Spaces user namespace on a command line if needed:

      $ oc project <your_user_namespace>

  7. Apply the Secret.

    Tip

    On OpenShift, you can use the oc command-line tool:

    $ oc apply -f - <<EOF
    <Secret_prepared_in_step_5>
    EOF

Verification

  1. Start a new workspace by using the URL of a remote Git repository that the Git provider hosts.
  2. Make some changes and push to the remote Git repository from the workspace.

6.2. Mounting ConfigMaps

To mount non-confidential configuration data into your workspaces, use Kubernetes ConfigMaps.

Using Kubernetes ConfigMaps, you can mount non-sensitive data such as configuration values for an application.

Mount Kubernetes ConfigMaps to the Dev Workspace containers in the OpenShift cluster of your organization’s OpenShift Dev Spaces instance.

Prerequisites

  • An active oc session with administrative permissions to the destination OpenShift cluster. See Getting started with the CLI.
  • In your user project, you created a new ConfigMap or determined an existing ConfigMap to mount to all Dev Workspace containers.

Procedure

  1. Add the labels, which are required for mounting the ConfigMap, to the ConfigMap.

    $ oc label configmap <ConfigMap_name> \
            controller.devfile.io/mount-to-devworkspace=true \
            controller.devfile.io/watch-configmap=true
  2. Optional: Use the annotations to configure how the ConfigMap is mounted.

    Table 6.2. Optional annotations
    AnnotationDescription

    controller.devfile.io/mount-path:

    Specifies the mount path.

    Defaults to /etc/config/<ConfigMap_name>.

    controller.devfile.io/mount-as:

    Specifies how the resource should be mounted: file, subpath, or env.

    Defaults to file.

    mount-as:file mounts the keys and values as files within the mount path.

    mount-as:subpath mounts the keys and values within the mount path using subpath volume mounts.

    mount-as:env mounts the keys and values as environment variables in all Dev Workspace containers.

Example 6.2. Mounting a ConfigMap as environment variables

kind: ConfigMap
apiVersion: v1
metadata:
  name: my-settings
  labels:
    controller.devfile.io/mount-to-devworkspace: 'true'
    controller.devfile.io/watch-configmap: 'true'
  annotations:
    controller.devfile.io/mount-as: env
data:
  <env_var_1>: <value_1>
  <env_var_2>: <value_2>

When you start a workspace, the <env_var_1> and <env_var_2> environment variables will be available in the Dev Workspace containers.

6.3. Enabling artifact repositories in a restricted environment

By configuring technology stacks, you can work with artifacts from in-house repositories using self-signed certificates:

6.3.1. Maven

You can enable a Maven artifact repository in Maven workspaces that run in a restricted environment.

Prerequisites

  • You are not running any Maven workspace.
  • You know your user namespace, which is <username>-devspaces where <username> is your OpenShift Dev Spaces username.

Procedure

  1. In the <username>-devspaces namespace, apply the Secret for the TLS certificate:

    kind: Secret
    apiVersion: v1
    metadata:
      name: tls-cer
      annotations:
        controller.devfile.io/mount-path: /home/user/certs
        controller.devfile.io/mount-as: file
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      tls.cer: >-
        <Base64_encoded_content_of_public_cert> 1
    1
    Base64 encoding with disabled line wrapping.
  2. In the <username>-devspaces namespace, apply the ConfigMap to create the settings.xml file:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: settings-xml
      annotations:
        controller.devfile.io/mount-as: subpath
        controller.devfile.io/mount-path: /home/user/.m2
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      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">
          <localRepository/>
          <interactiveMode/>
          <offline/>
          <pluginGroups/>
          <servers/>
          <mirrors>
            <mirror>
              <id>redhat-ga-mirror</id>
              <name>Red Hat GA</name>
              <url>https://<maven_artifact_repository_route>/repository/redhat-ga/</url>
              <mirrorOf>redhat-ga</mirrorOf>
            </mirror>
            <mirror>
              <id>maven-central-mirror</id>
              <name>Maven Central</name>
              <url>https://<maven_artifact_repository_route>/repository/maven-central/</url>
              <mirrorOf>maven-central</mirrorOf>
            </mirror>
            <mirror>
              <id>jboss-public-repository-mirror</id>
              <name>JBoss Public Maven Repository</name>
              <url>https://<maven_artifact_repository_route>/repository/jboss-public/</url>
              <mirrorOf>jboss-public-repository</mirrorOf>
            </mirror>
          </mirrors>
          <proxies/>
          <profiles/>
          <activeProfiles/>
        </settings>
  3. Optional: When using JBoss EAP-based devfiles, apply a second settings-xml ConfigMap in the <username>-devspaces namespace, and with the same content, a different name, and the /home/jboss/.m2 mount path.
  4. In the <username>-devspaces namespace, apply the ConfigMap for the TrustStore initialization script:

    Java 8

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: init-truststore
      annotations:
        controller.devfile.io/mount-as: subpath
        controller.devfile.io/mount-path: /home/user/
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      init-java8-truststore.sh: |
        #!/usr/bin/env bash
    
        keytool -importcert -noprompt -file /home/user/certs/tls.cer -trustcacerts -keystore ~/.java/current/jre/lib/security/cacerts -storepass changeit

    Java 11

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: init-truststore
      annotations:
        controller.devfile.io/mount-as: subpath
        controller.devfile.io/mount-path: /home/user/
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      init-java11-truststore.sh: |
        #!/usr/bin/env bash
    
        keytool -importcert -noprompt -file /home/user/certs/tls.cer -cacerts -storepass changeit

  5. Start a Maven workspace.
  6. Open a new terminal in the tools container.
  7. Run ~/init-truststore.sh.

6.3.2. Gradle

You can enable a Gradle artifact repository in Gradle workspaces that run in a restricted environment.

Prerequisites

  • You are not running any Gradle workspace.

Procedure

  1. Apply the Secret for the TLS certificate:

    kind: Secret
    apiVersion: v1
    metadata:
      name: tls-cer
      annotations:
        controller.devfile.io/mount-path: /home/user/certs
        controller.devfile.io/mount-as: file
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      tls.cer: >-
        <Base64_encoded_content_of_public_cert> 1
    1
    Base64 encoding with disabled line wrapping.
  2. Apply the ConfigMap for the TrustStore initialization script:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: init-truststore
      annotations:
        controller.devfile.io/mount-as: subpath
        controller.devfile.io/mount-path: /home/user/
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      init-truststore.sh: |
        #!/usr/bin/env bash
    
        keytool -importcert -noprompt -file /home/user/certs/tls.cer -cacerts -storepass changeit
  3. Apply the ConfigMap for the Gradle init script:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: init-gradle
      annotations:
        controller.devfile.io/mount-as: subpath
        controller.devfile.io/mount-path: /home/user/.gradle
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      init.gradle: |
        allprojects {
          repositories {
            mavenLocal ()
            maven {
              url "https://<gradle_artifact_repository_route>/repository/maven-public/"
              credentials {
                username "admin"
                password "passwd"
              }
            }
          }
        }
  4. Start a Gradle workspace.
  5. Open a new terminal in the tools container.
  6. Run ~/init-truststore.sh.

6.3.3. npm

You can enable an npm artifact repository in npm workspaces that run in a restricted environment.

Prerequisites

  • You are not running any npm workspace.
Warning

Applying a ConfigMap that sets environment variables might cause a workspace boot loop.

If you encounter this behavior, remove the ConfigMap and edit the devfile directly.

Procedure

  1. Apply the Secret for the TLS certificate:

    kind: Secret
    apiVersion: v1
    metadata:
      name: tls-cer
      annotations:
        controller.devfile.io/mount-path: /home/user/certs
        controller.devfile.io/mount-as: file
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      tls.cer: >-
        <Base64_encoded_content_of_public_cert> 1
    1
    Base64 encoding with disabled line wrapping.
  2. Apply the ConfigMap to set the following environment variables in the tools container:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: disconnected-env
      annotations:
        controller.devfile.io/mount-as: env
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      NODE_EXTRA_CA_CERTS: /home/user/certs/tls.cer
      NPM_CONFIG_REGISTRY: >-
        https://<npm_artifact_repository_route>/repository/npm-all/

6.3.4. Python

You can enable a Python artifact repository in Python workspaces that run in a restricted environment.

Prerequisites

  • You are not running any Python workspace.
Warning

Applying a ConfigMap that sets environment variables might cause a workspace boot loop.

If you encounter this behavior, remove the ConfigMap and edit the devfile directly.

Procedure

  1. Apply the Secret for the TLS certificate:

    kind: Secret
    apiVersion: v1
    metadata:
      name: tls-cer
      annotations:
        controller.devfile.io/mount-path: /home/user/certs
        controller.devfile.io/mount-as: file
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      tls.cer: >-
        <Base64_encoded_content_of_public_cert> 1
    1
    Base64 encoding with disabled line wrapping.
  2. Apply the ConfigMap to set the following environment variables in the tools container:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: disconnected-env
      annotations:
        controller.devfile.io/mount-as: env
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      PIP_INDEX_URL: >-
        https://<python_artifact_repository_route>/repository/pypi-all/
      PIP_CERT: /home/user/certs/tls.cer

6.3.5. Go

You can enable a Go artifact repository in Go workspaces that run in a restricted environment.

Prerequisites

  • You are not running any Go workspace.
Warning

Applying a ConfigMap that sets environment variables might cause a workspace boot loop.

If you encounter this behavior, remove the ConfigMap and edit the devfile directly.

Procedure

  1. Apply the Secret for the TLS certificate:

    kind: Secret
    apiVersion: v1
    metadata:
      name: tls-cer
      annotations:
        controller.devfile.io/mount-path: /home/user/certs
        controller.devfile.io/mount-as: file
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      tls.cer: >-
        <Base64_encoded_content_of_public_cert> 1
    1
    Base64 encoding with disabled line wrapping.
  2. Apply the ConfigMap to set the following environment variables in the tools container:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: disconnected-env
      annotations:
        controller.devfile.io/mount-as: env
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      GOPROXY: >-
        http://<athens_proxy_route>
      SSL_CERT_FILE: /home/user/certs/tls.cer

6.3.6. NuGet

You can enable a NuGet artifact repository in NuGet workspaces that run in a restricted environment.

Prerequisites

  • You are not running any NuGet workspace.
Warning

Applying a ConfigMap that sets environment variables might cause a workspace boot loop.

If you encounter this behavior, remove the ConfigMap and edit the devfile directly.

Procedure

  1. Apply the Secret for the TLS certificate:

    kind: Secret
    apiVersion: v1
    metadata:
      name: tls-cer
      annotations:
        controller.devfile.io/mount-path: /home/user/certs
        controller.devfile.io/mount-as: file
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-secret: 'true'
    data:
      tls.cer: >-
        <Base64_encoded_content_of_public_cert> 1
    1
    Base64 encoding with disabled line wrapping.
  2. Apply the ConfigMap to set the environment variable for the path of the TLS certificate file in the tools container:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: disconnected-env
      annotations:
        controller.devfile.io/mount-as: env
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      SSL_CERT_FILE: /home/user/certs/tls.cer
  3. Apply the ConfigMap to create the nuget.config file:

    kind: ConfigMap
    apiVersion: v1
    metadata:
      name: init-nuget
      annotations:
        controller.devfile.io/mount-as: subpath
        controller.devfile.io/mount-path: /projects
      labels:
        controller.devfile.io/mount-to-devworkspace: 'true'
        controller.devfile.io/watch-configmap: 'true'
    data:
      nuget.config: |
        <?xml version="1.0" encoding="UTF-8"?>
        <configuration>
          <packageSources>
            <add key="nexus2" value="https://<nuget_artifact_repository_route>/repository/nuget-group/"/>
          </packageSources>
          <packageSourceCredentials>
            <nexus2>
                <add key="Username" value="admin" />
                <add key="Password" value="passwd" />
            </nexus2>
          </packageSourceCredentials>
        </configuration>
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