feat(oauth2proxy): enable self-signed TLS cert #210
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andrewazores
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charts/cryostat/templates/NOTES.txt
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| @@ -59,6 +63,6 @@ | |||
| {{- else if contains "LoadBalancer" .Values.core.service.type }} | |||
| echo http://$SERVICE_IP:{{ .Values.core.service.httpPort }} | |||
| {{- else if contains "ClusterIP" .Values.core.service.type }} | |||
| http://localhost:8080 | |||
| {{ ternary "https" "http" (or .Values.authentication.openshift.enabled .Values.oauth2Proxy.service.tls.selfSigned.enabled) }}://localhost:{{ ternary "8443" "8080" (or .Values.authentication.openshift.enabled .Values.oauth2Proxy.service.tls.selfSigned.enabled) }} | |||
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Since (or .Values.authentication.openshift.enabled .Values.oauth2Proxy.service.tls.selfSigned.enabled) is being in many places, maybe we could refactor it into a helper named template?
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I've tried this, but I just get complaints from Helm that the included template has type string instead of bool :/
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I've tried this, but I just get complaints from Helm that the included template has type string instead of bool :/
I guess we can return string "true"/"false" and do string compare? Or perhaps just return the protocol https/http? What do you think?
| {{- if .Values.oauth2Proxy.service.tls.selfSigned.enabled }} | ||
| SecureBindAddress: https://0.0.0.0:8443 | ||
| {{- end}} | ||
| TLS: |
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Should this be wrapped in the if block above?
charts/cryostat/values.yaml
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| service: | ||
| tls: | ||
| selfSigned: | ||
| ## @param oauth2Proxy.service.tls.selfSigned.enabled Whether a self-signed TLS certificate for oauth2-proxy HTTPS is generated and used. | ||
| enabled: false |
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Could it be like below (i.e. removing service:)?
tls:
selfSigned:
## @param oauth2Proxy.service.tls.selfSigned.enabled Whether a self-signed TLS certificate for oauth2-proxy HTTPS is generated and used.
enabled: false| @@ -5,6 +5,7 @@ metadata: | |||
| labels: | |||
| {{- include "cryostat.labels" . | nindent 4 }} | |||
| app.kubernetes.io/component: test-grafana-connection | |||
| helm-test: cryostat | |||
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Just curious, are there some reasons to add this label?
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Just to make cleanup of the test Pods easier.
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Sure, how about using having standard format for cryostat-specific label? Like below or similar options:
charts.cryostat.io/role: helm-test
| @@ -0,0 +1,15 @@ | |||
| {{- if (and (not (.Values.authentication.openshift).enabled) (.Values.oauth2Proxy.service.tls.selfSigned.enabled)) }} | |||
| {{- $fullName := include "cryostat.fullname" . }} | |||
| {{- $cert := genSelfSignedCert $fullName nil nil 365 }} | |||
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Just a question: This means the certificate expires after a year right? This means the users have to rotate the certificate themselves?
Any thoughts about depending on cert-manager to manage certificates like on the operator side?
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Yea, it'll expire after a year. Users have to rotate it themselves or figure out something else automated. I don't really want to get into adding an external dependency to the Helm chart, since part of the reason for the chart to exist is for users who can't use the Operator, ex. because they don't have full admin control of the cluster or whatever else. If the user needs TLS but can't install the Operator, then this gives them at least something to work with as a starting point, and then they can build whatever other automation they need on top to suit their particular deployment environment.
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Sounds good! Thanks for explaining! I think a quick note in README about this would be helpful :D
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Working to rebase atop #206 now. |
andrewazores
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Related to #168
Depends on #211 - that change is higher priority, and will conflict with this one since the port-forward post-install note will need to be updated for the new port names
Uses a Helm function to generate a self-signed cert, which is used for TLS on the oauth2-proxy. In the case that
authentication.openshift.enabled=trueis set, then the openshift-oauth-proxy is used instead and is presumably deployed on OpenShift, which has the serving-cert feature instead. If that value is not set, then the feature in this PR enables similar behaviour for the oauth2-proxy (whether deployed on OpenShift or not) so that the proxy only exposes HTTPS. This is disabled by default, and the post-installation notes are updated to instruct the user to port-forward to the HTTPS port and open that URL to find the Cryostat UI if they do enable it.I intend to follow up later on with similar PRs to enable self-signed TLS certs on the other components (db, storage) so that communications are always encrypted. It is also possible to create a self-signed CA, issue certs from that CA, and add that CA to a truststore. It's probably also possible to create the certs so that hostname verification of components works.
To test:
helm install mycryostat ./charts/cryostathttp://localhost:8080port-forward. This should get you the Cryostat Web UI.helm uninstall mycryostathelm install --set oauth2Proxy.service.tls.selfSigned.enabled=true mycryostat ./charts/cryostathttps://localhost:8443port-forward. This should get you the Cryostat Web UI. You will likely need to accept a self-signed cert warning from your browser.