OpenFaaS Dashboard¶

The OpenFaaS Dashboard is a new UI, rebuilt to make operating and understanding OpenFaaS easier.

Note: This feature is included for OpenFaaS Standard & For Enterprises customers.

Using the dashboard¶

Your browser can save the password for your various OpenFaaS environments, so that the credentials can follow you between machines, or be saved in password manager like 1Password.

Login to the dashboard

Login to the dashboard

Once logged in, you'll be met by the namespace selector. Namespaces can be used to group functions together, or to provide a level of isolation between teams using the same OpenFaaS installation.

Select a namespace to explore

Select a namespace to explore

See also: Namespace support

An overview of functions

An overview of functions

Note that the fields such as repository and SHA can be populated at deploy time and integrate into the UI to create links and show you what's deployed.

The details for a function

View the details for a function, including metrics, logs and metadata about its deployment

View logs without a terminal, in one place

The logs of the figlet function, viewed without kubectl or needing separate terminal access.

faas-cli store deploy \
    figlet \
    --gateway https://of-pro.example.com \
    --env write_debug=true \
    --env read_debug=true
for i in {0..3}; do curl https://of-pro.example.com/function/figlet -d $i ; done

To populate the metadata in the UI, simply set the following at deployment time via faas-cli deploy or the OpenFaaS Custom Resource:

Type	Key	Example value
label	`com.openfaas.git-branch`	`master`
label	`com.openfaas.git-owner`	`openfaas`
annotation	`com.openfaas.git-repo-url`	`https://github.com/openfaas/store-functions`
label	`com.openfaas.git-repo`	`store-functions`
label	`com.openfaas.git-sha`	`665d9597547d8e0425630ba2dbb73c2951a61ce2`

Here's an example:

faas-cli store deploy cows \
  --label com.openfaas.scale.min=2 \
  --annotation com.openfaas.git-repo-url=https://github.com/openfaas/store-functions \
  --label com.openfaas.git-owner=openfaas \
  --label com.openfaas.git-repo=store-functions \
  --label com.openfaas.git-branch=master \
  --label com.openfaas.git-sha=f79e2c86e8d67f747d1e449ba6ca63eb5858e5bb

Any of these fields can be replaced through environment substitution in stack.yml or using helm during CI/CD.

Example snippet from stack.yml:

functions:
  cows:
    lang: golang-middleware
    handler: ./cows
    image: alexellis2/cows:0.1
    labels:
      com.openfaas.git-sha: ${GIT_SHA:-dev}

Then using environment variables from your CI system such as GitHub Actions or GitLab CI, override any variables you want to change.

Example of injecting the SHA from Gitlab:

GIT_SHA=$CI_COMMIT_SHA faas-cli deploy

Example with GitHub Actions:

GIT_SHA=$GITHUB_SHA faas-cli deploy

When the GIT_SHA variable is omitted, then the text dev will be inputted instead.

Installation¶

The OpenFaaS Dashboard is installed through the openfaas helm chart, and will also work with faasd.

Before deploying, you'll need to have created a secret for your license, you'll find instruction in the helm chart for this.

Create a signing key¶

You need to create a JWT signing key and a separate secret for the dashboard. It's used to sign and validate logged in sessions.

# Generate a private key
openssl ecparam -genkey -name prime256v1 -noout -out jwt_key

# Then create a public key from the private key
openssl ec -in jwt_key -pubout -out jwt_key.pub

# Store both in a secret in the openfaas namespace
kubectl -n openfaas \
  create secret generic dashboard-jwt \
  --from-file=key=./jwt_key \
  --from-file=key.pub=./jwt_key.pub

Note

For easy deployment during development this step can be skipped. The dashboard will automatically create the required signing keys on startup.

Note that these keys will be recreated any time the dashboard container is restarted invalidating any logged in sessions.

Configure the dashboard¶

To enable the dashboard feature, add the following to your values.yaml file for the openfaas chart:

dashboard:
  enabled: true
  publicURL: https://dashboard.example.com
  # Name of signing key secret for sessions.
  # Can be left blank for development deployments.
  signingKeySecret: "dashboard-jwt"

The publicURL, doesn't necessarily have to be publicly exposed on the Internet, but it does need to be a fully qualified domain name (FQDN).

The signingKeySecret can be left blank to auto generate signing keys (See: Create a signing key).

Configure the dashboard with IAM¶

If you have enabled Identity and Access Management (IAM) for OpenFaaS authentication to the dashboard happens via OpenID Connect(OIDC). This requires a few extra configuration steps.

Configure an OIDC provider.

If you have already configured your OIDC provider and registered it with OpenFaaS this step can be skipped. If you did not configure any providers see: Single Sign-On (SSO) for the OpenFaaS CLI and dashboard

Generate AES encryption key

An AES encryption key needs to be generated and stored in secret in the openfaas namespace. This AES key is used to encrypt the OpenFaaS access token.

# Generate a key
openssl rand -hex 16 > aes_key

# Store the key in a secret in the openfaas namespace
kubectl -n openfaas \
  create secret generic aes-key \
  --from-file=aes_key=./aes_key

Create a Kubernetes secret for the OAuth client secret

This step can be skipped if the issuer used for the dashboard does not need a client secret. Retrieve the client secret from your identity provider and store it a file client_secret.
```
kubectl create secret generic \
  -n openfaas \
  oauth-client-secret \
  --from-file client_secret=./client_secret
```
Configure the OpenFaaS deployment

Add the following to iam section in your values.yaml file for the openfaas chart:
```
iam:
  dashboardIssuer:
    # URL if the issuer
    url: "https://example.auth0.com"
    clientId: ""
    # Name of Kubernetes secret containing the client secret.
    # Can be left blank if a client secret is not required e.g for the PKCE flow.
    clientSecret: "oauth-client-secret"
    scopes:
      - openid
      - profile
      - email
```
The clientSecret can be left blank if your OIDC provider does not require a secret.

Depending on your provider and setup you might need to request additional scopes. These can be set through the scopes parameter.

Custom certificate bundle

When using an internal certificate authority or self-signed TLS certificates for the OpenFaaS gateway or your identity provider, the dashboard will needs a custom CA bundle for making HTTP requests to these components.

See: Custom CA bundle for OpenFaaS IAM

Access your dashboard via port-forwarding¶

If you don't want to expose your dashboard to users over the Internet, then you can access it as and when required using port-forwarding. Instead of giving a domain and DNS record, you can set the public url in your values.yaml file to localhost or an empty string.

dashboard:
  enabled: true
  publicURL: "localhost"

To access the dashboard run the following, whenever you need it:

kubectl port-forward \
  -n openfaas \
  service/dashboard 8081:8080

The username is admin and the password is the same one used for faas-cli login.

Then access the URL via http://127.0.0.1:8081

Expose your dashboard on the Internet¶

The Helm chart has instructions for exposing both the gateway and the dashboard over the Internet using Let's Encrypt and cert-manager. You can also create your your custom Ingress record or Istio Gateway, the dashboard is available at http://dashboard.openfaas:8080 within the cluster.

Access OpenFaaS over TLS from your local machine¶

When working locally, you will not have a public IP address available. You can use an inlets tunnel to access your OpenFaaS gateway and dashboard over TLS.

Set up the tunnel using these steps: inlets automated HTTP server, then apply the below YAML for the tunnel client, to expose both the gateway and the dashboard.

Edit the token, license, and url fields as per the output from link above.
Then update the values for upstreamto match the domain names you're using for the gateway and dashboard, make sure you've created DNS A or CNAME records to point to the tunnel server.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: inlets-dashboard-client
  namespace: openfaas
spec:
  replicas: 1
  selector:
    matchLabels:
      app: inlets-dashboard-client
  template:
    metadata:
      labels:
        app: inlets-dashboard-client
    spec:
      containers:
      - name: inlets-dashboard-client
        image: ghcr.io/inlets/inlets-pro:0.9.3
        imagePullPolicy: IfNotPresent
        command: ["inlets-pro"]
        args:
        - "http"
        - "client"
        - "--url=wss://EXIT_SERVER_IP"
        - "--token="
        - "--license="
        - "--upstream=dashboard.example.com=http://dashboard.openfaas:8080"
        - "--upstream=gateway.example.com=http://gateway.openfaas:8080"

You can use the same tunnel and exit server for multiple domains, to expose both the gateway and the dashboard with TLS and authentication.

Graphs¶

Note

Available in ghcr.io/openfaasltd/openfaas-dashboard:0.5.26 or later.

The OpenFaaS dashboard comes with built-in graphs to give you better visibility into function behavior and resource utilization, making it easier to debug and optimize your workloads.

It provides detailed metrics for individual functions, including:

Invocation metrics

Rate, Error, Duration (RED) metrics.

Invocation rate by status code - Function invocation rate over the last 30s broken down by status code.
Latency by status code - Average function invocation latency over the last 30s broken down by status code.

Invocation graphs

Load metrics

View function replica count and current load.

Load - Load as measured by the autoscaler.
Replicas - Function replica count.

Load graphs

Resource usage

CPU/RAM usage of functions.

CPU usage - CPU usage of the function across all replicas, measured in milli-CPU.
Memory usage - Memory usage of the function across all replicas.

Resource usage graphs

Would you like a demo?¶

Feel free to reach out to us for a demo or to ask any questions you may have.

Talk to us