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feature/enh290 Set OIDC clientSecret to be set via a secret #303

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feature/enh290 Set OIDC clientSecret to be set via a secret #303

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3 changes: 2 additions & 1 deletion README.md
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Expand Up @@ -153,7 +153,8 @@ The following table lists the configurable parameters of the nifi chart and the
| `auth.oidc.enabled` | Enable User auth via oidc | `false` |
| `auth.oidc.discoveryUrl` | oidc discover url | `https://<provider>/.well-known/openid-configuration` |
| `auth.oidc.clientId` | oidc clientId | `nil` |
| `auth.oidc.clientSecret` | oidc clientSecret | `nil` |
| `auth.oidc.clientSecret` | oidc clientSecret (plaintext secret that could get stored in git, logs, etc.) | `nil` |
| `auth.oidc.existingSecret` | Name of an existing secret with the oidc clientSecret | `nil` |
| `auth.oidc.claimIdentifyingUser` | oidc claimIdentifyingUser | `email` |
| `auth.oidc.admin` | Default OIDC admin identity | `nifi@example.com` |
| Note that OIDC authentication to a multi-NiFi-node cluster requires Ingress sticky sessions | See [background](https://community.cloudera.com/t5/Support-Questions/OIDC-With-Azure-AD/m-p/232324#M194163) | Also [how](https://kubernetes.github.io/ingress-nginx/examples/affinity/cookie/) |
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8 changes: 4 additions & 4 deletions configs/login-identity-providers-ldap.xml
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Expand Up @@ -65,7 +65,7 @@
<provider>
<identifier>ldap-provider</identifier>
<class>org.apache.nifi.ldap.LdapProvider</class>
<property name="Authentication Strategy">SIMPLE</property>
<property name="Authentication Strategy">{{.Values.auth.ldap.authStrategy}}</property>
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I see the master branch already has the code you want (not hardcoded with SIMPLE. Not sure why the PR still shows SIMPE on the left pane??

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Hmm, I don't recall changing this file.
For people who do GitOps we need a existingSecret to be referred to. Not using values. So the secrets aren't stored in git.

<property name="Manager DN">{{.Values.auth.ldap.admin}}</property>
<property name="Manager Password">{{.Values.auth.ldap.pass}}</property>
<property name="TLS - Keystore">/opt/nifi/nifi-current/conf/{{.Release.Name}}-nifi-0.{{.Release.Name}}-nifi-headless.{{.Release.Namespace}}.svc.cluster.local/keystore.jks</property>
Expand All @@ -83,8 +83,8 @@
<property name="Read Timeout">10 secs</property>
<property name="Url">{{.Values.auth.ldap.host}}</property>
<property name="User Search Base">{{.Values.auth.ldap.searchBase}}</property>
<property name="User Search Filter">(cn={0})</property>
<property name="User Search Filter">({{.Values.auth.ldap.userIdentityAttribute}}={0})</property>
<property name="Identity Strategy">{{.Values.auth.ldap.IdentityStrategy}}</property>
<property name="Authentication Expiration">12 hours</property>
<property name="Authentication Expiration">{{.Values.auth.ldap.authExpiration}}</property>
</provider>
</loginIdentityProviders>
</loginIdentityProviders>
14 changes: 14 additions & 0 deletions templates/secret.yaml
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@@ -0,0 +1,14 @@
{{- if and .Values.auth.oidc.enabled (not (.Values.auth.oidc.existingSecret)) }}
apiVersion: v1
kind: Secret
metadata:
name: {{ template "apache-nifi.fullname" . }}-oidc
labels:
app: {{ include "apache-nifi.name" . | quote }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
release: {{ .Release.Name | quote }}
heritage: {{ .Release.Service | quote }}
data:
clientSecret: {{ .Values.auth.oidc.clientSecret | b64enc }}

{{- end }}
16 changes: 15 additions & 1 deletion templates/statefulset.yaml
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Expand Up @@ -146,7 +146,7 @@ spec:
prop_replace nifi.security.user.authorizer managed-authorizer
prop_replace nifi.security.user.oidc.discovery.url {{ .Values.auth.oidc.discoveryUrl }}
prop_replace nifi.security.user.oidc.client.id {{ .Values.auth.oidc.clientId }}
prop_replace nifi.security.user.oidc.client.secret {{ .Values.auth.oidc.clientSecret }}
prop_replace nifi.security.user.oidc.client.secret $(cat /mnt/secrets/oidc/clientSecret)
prop_replace nifi.security.user.oidc.claim.identifying.user {{ .Values.auth.oidc.claimIdentifyingUser }}
xmlstarlet ed --inplace --delete "//authorizers/authorizer[identifier='single-user-authorizer']" "${NIFI_HOME}/conf/authorizers.xml"
xmlstarlet ed --inplace --update "//authorizers/userGroupProvider/property[@name='Users File']" -v './auth-conf/users.xml' "${NIFI_HOME}/conf/authorizers.xml"
Expand Down Expand Up @@ -523,6 +523,11 @@ spec:
{{- end }}
{{- end }}
{{- end }}
{{- if .Values.auth.oidc.enabled }}
- name: oidc-secret
mountPath: /mnt/secrets/oidc
readOnly: true
{{- end }}
{{- if .Values.certManager.enabled }}
- name: "tls"
mountPath: /opt/nifi/nifi-current/tls
Expand Down Expand Up @@ -783,6 +788,15 @@ spec:
- name: logs
emptyDir: {}
{{- end }}
{{- if .Values.auth.oidc.enabled }}
- name: oidc-secret
secret:
{{- if not .Values.auth.oidc.existingSecret }}
secretName: {{ template "apache-nifi.fullname" . }}-oidc
{{- else }}
secretName: {{ .Values.auth.oidc.existingSecret }}
{{- end }}
{{- end }}
{{- if .Values.extraVolumes }}
{{ toYaml .Values.extraVolumes | indent 6 }}
{{- end }}
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3 changes: 3 additions & 0 deletions values.yaml
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Expand Up @@ -147,6 +147,9 @@ auth:
discoveryUrl: #http://<oidc_provider_address>:<oidc_provider_port>/auth/realms/<client_realm>/.well-known/openid-configuration
clientId: #<client_name_in_oidc_provider>
clientSecret: #<client_secret_in_oidc_provider>
# try to use an existing secret that has been sourced from a key vault so the clientSecret isn't stored in plaintext
# if this is set then the clientSecret above is ignored.
existingSecret:
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Wh not use the same property "clientSecret" with value comes from the vault or any other tools for secrets? Personally I think it adds confusion with two properties for the same purpose.

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The way I did it is what most public Helm charts I've seen do.
It lets the dev/test people just use a plaintext password. clientSecret is the actual password, not a reference to a k8s secret. Also in future the existingSecret could contain more than just one key, like it may need for ldap or the simple method.

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It is also backwards compatible for existing user's config

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I've seen this pattern before too, it's pretty common

claimIdentifyingUser: email
admin: nifi@example.com
## Request additional scopes, for example profile
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