docs: manifests for SSO using ArgoCD Dex, to be used with Kustomize (#…

…5647) Signed-off-by: bgdnlp <github.com@neant.ro>
argoproj · Apr 13, 2021 · 9c942d5 · 9c942d5
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diff --git a/docs/argo-server-sso-argocd.md b/docs/argo-server-sso-argocd.md
@@ -0,0 +1,144 @@
+# Use ArgoCD Dex for authentication
+
+It is possible to have the Argo Workflows Server use the Argo CD Dex instance for authentication, for instance if you use Okta with SAML which cannot integrate with Argo Workflows directly. In order to make this happen, you will need the following:
+
+- You must be using at least Dex [v2.23.0](https://github.com/dexidp/dex/releases/tag/v2.23.0), because that's when `staticClients[].secretEnv` was added. That means ArgoCD 1.7.12 and above.
+- A secret containing two keys, `client-id` and `client-secret` to be used by both Dex and Argo Workflows Server. `client-id` is `argo-workflows-sso` in this example, `client-secret` can be any random string. If ArgoCD and ArgoWorkflows are installed in different namespaces the secret must be present in both of them. Example:
+  ```yaml
+  apiVersion: v1
+  kind: Secret
+  metadata:
+    name: argo-workflows-sso
+  data:
+    # client-id is 'argo-workflows-sso'
+    client-id: YXJnby13b3JrZmxvd3Mtc3Nv
+    # client-secret is 'MY-SECRET-STRING-CAN-BE-UUID'
+    client-secret: TVktU0VDUkVULVNUUklORy1DQU4tQkUtVVVJRA==
+  ```
+- `--auth-mode=sso` server argument added
+- A Dex `staticClients` configured for `argo-workflows-sso`
+- The `sso` configuration filled out in Argo Workflows Server to match
+
+## Example manifests for authenticating against ArgoCD's Dex (Kustomize)
+
+In ArgoCD, add an environment variable to Dex deployment and configuration:
+```yaml
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: argocd-dex-server
+spec:
+  template:
+    spec:
+      containers:
+        - name: dex
+          env:
+            - name: ARGO_WORKFLOWS_SSO_CLIENT_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: argo-workflows-sso
+                  key: client-secret
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: argocd-cm
+data:
+  # Kustomize sees the value of dex.config as a single string instead of yaml. It will not merge
+  # Dex settings, but instead it will replace the entire configuration with the settings below,
+  # so add these to the existing config instead of setting them in a separate file
+  dex.config: |
+    # Setting staticClients allows ArgoWorkflows to use ArgoCD's Dex installation for authentication
+    staticClients:
+      - id: argo-workflows-sso
+        name: Argo Workflow
+        redirectURIs:
+          - https://argo-workflows.mydomain.com/oauth2/callback
+        secretEnv: ARGO_WORKFLOWS_SSO_CLIENT_SECRET
+```
+
+In Argo Workflows add `--auth-mode=sso` argument to argo-server deployment.
+```yaml
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: argo-server
+spec:
+  template:
+    spec:
+      containers:
+        - name: argo-server
+          args:
+            - server
+            - --auth-mode=sso
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: workflow-controller-configmap
+data:
+  # SSO Configuration for the Argo server.
+  # You must also start argo server with `--auth-mode sso`.
+  # https://argoproj.github.io/argo/argo-server-auth-mode/
+  sso: |
+    # This is the root URL of the OIDC provider (required).
+    issuer: https://argo-cd.mydomain.com/api/dex
+    # This is name of the secret and the key in it that contain OIDC client
+    # ID issued to the application by the provider (required).
+    clientId:
+      name: argo-workflows-sso
+      key: client-id
+    # This is name of the secret and the key in it that contain OIDC client
+    # secret issued to the application by the provider (required).
+    clientSecret:
+      name: argo-workflows-sso
+      key: client-secret
+    # This is the redirect URL supplied to the provider (required). It must
+    # be in the form <argo-server-root-url>/oauth2/callback. It must be
+    # browser-accessible.
+    redirectUrl: https://argo-workflows.mydomain.com/oauth2/callback
+```
+
+## Example Helm chart configuration for authenticating against ArgoCD's Dex
+
+`argo-cd/values.yaml`:
+```yaml
+     dex:
+       image:
+         tag: v2.23.0
+       env:
+         - name: ARGO_WORKFLOWS_SSO_CLIENT_SECRET
+           valueFrom:
+             secretKeyRef:
+               name: argo-workflows-sso
+               key: client-secret
+     server:
+       config:
+         dex.config: |
+           staticClients:
+           - id: argo-workflows-sso
+             name: Argo Workflow
+             redirectURIs:
+               - https://argo-workflows.mydomain.com/oauth2/callback
+             secretEnv: ARGO_WORKFLOWS_SSO_CLIENT_SECRET
+```
+
+`argo/values.yaml`:
+```yaml
+     server:
+       extraArgs:
+         - --auth-mode=sso
+       sso:
+         issuer: https://argo-cd.mydomain.com/api/dex
+         # sessionExpiry defines how long your login is valid for in hours. (optional, default: 10h)
+         sessionExpiry: 240h
+         clientId:
+           name: argo-workflows-sso
+           key: client-id
+         clientSecret:
+           name: argo-workflows-sso
+           key: client-secret
+         redirectUrl: https://argo-workflows.mydomain.com/oauth2/callback
+```
diff --git a/docs/argo-server-sso.md b/docs/argo-server-sso.md
@@ -4,6 +4,8 @@
 
 > v2.9 and after
 
+It is possible to use [Dex](https://github.com/dexidp/dex) for authentication. [This document](argo-server-sso-argocd.md) describes how to set up ArgoWorkflows and ArgoCD so that ArgoWorkflows uses ArgoCD's Dex server for authentication.
+
 ## To start Argo Server with SSO.
 
 Firstly, configure the settings [workflow-controller-configmap.yaml](workflow-controller-configmap.yaml) with the correct OAuth 2 values.
@@ -119,55 +121,3 @@ By default, your SSO session will expire after 10 hours. You can change this by
       # Expiry defines how long your login is valid for in hours. (optional)
       sessionExpiry: 240h
     ```
-
-## Sharing the Argo CD Dex Instance using Oauth2
-
-It is possible to have the Argo Workflows Server use the Argo CD Dex instance for SSO, for instance if you use Okta with SAML which cannot integrate with Argo Workflows directly. In order to make this happen, you will need the following:
-
-- You must be using at least Dex [v2.23.0](https://github.com/dexidp/dex/releases/tag/v2.23.0), because that's when `staticClients[].secretEnv` was added.
-- A secret created above with a `client-id` and `client-secret` to be used by both Dex and Argo Workflows Server. It is called `argo-workflows-sso` in this example.
-- `--auth-mode=sso` server argument added
-- A Dex `staticClients` configured for `argo-workflows-sso`
-- The `sso` configuration filled out in Argo Workflows Server to match
-
-What this might look like in your chart configuration:
-
-`argo-cd/values.yaml`:
-```yaml
-     dex:
-       image:
-         tag: v2.23.0
-       env:
-         - name: ARGO_WORKFLOWS_SSO_CLIENT_SECRET
-           valueFrom:
-             secretKeyRef:
-               name: argo-workflows-sso
-               key: client-secret
-     server:
-       config:
-         dex.config: |
-           staticClients:
-           - id: argo-workflows-sso
-             name: Argo Workflow
-             redirectURIs:
-               - https://argo-workflows.mydomain.com/oauth2/callback
-             secretEnv: ARGO_WORKFLOWS_SSO_CLIENT_SECRET
-```
-
-`argo/values.yaml`:
-```yaml
-     server:
-       extraArgs:
-         - --auth-mode=sso
-       sso:
-         issuer: https://argo-cd.mydomain.com/api/dex
-         # sessionExpiry defines how long your login is valid for in hours. (optional, default: 10h)
-         sessionExpiry: 240h
-         clientId:
-           name: argo-workflows-sso
-           key: client-id
-         clientSecret:
-           name: argo-workflows-sso
-           key: client-secret
-         redirectUrl: https://argo-workflows.mydomain.com/oauth2/callback
-```
diff --git a/docs/argo-server.md b/docs/argo-server.md
@@ -58,8 +58,7 @@ See [TLS](tls.md).
 
 ### SSO 
 
-See [SSO](argo-server-sso.md).
-
+See [SSO](argo-server-sso.md). See [here](argo-server-sso-argocd.md) about sharing ArgoCD's Dex with ArgoWorkflows.
 
 ## Access the Argo Workflows UI
 

diff --git a/mkdocs.yml b/mkdocs.yml
@@ -140,6 +140,7 @@ nav:
           - argo-server-auth-mode.md
           - tls.md
           - argo-server-sso.md
+          - argo-server-sso-argocd.md
       - high-availability.md
       - disaster-recovery.md
       - scaling.md
-Original file line number
+Diff line change
@@ Expand Up / @@ -58,8 +58,7 @@ See [TLS](tls.md). @@
     ### SSO
-    See [SSO](argo-server-sso.md).
+    See [SSO](argo-server-sso.md). See [here](argo-server-sso-argocd.md) about sharing ArgoCD's Dex with ArgoWorkflows.
     ## Access the Argo Workflows UI
@@ Expand Down @@