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Configure-service-accountedge-passthoguh-routes-SOLUTION.md

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Configure service account

creating a service account with scc to allow app to run

  • log in as developer

  • create new project appsec-scc

  • deploy an app without exposing a route oc new-app --name nginx --image nginx

  • note that the application fails to start

❯ oc get pods                           
NAME                      READY   STATUS             RESTARTS      AGE
nginx-69567d67f8-nwvp2   0/1     CrashLoopBackOff   2 (21s ago)   42s
  • check logs pod logs
❯ oc logs pod/nginx-69567d67f8-nwvp2 
/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
.
.
.
nginx: [warn] the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /etc/nginx/nginx.conf:2
2023/09/07 23:19:46 [emerg] 1#1: mkdir() "/var/cache/nginx/client_temp" failed (13: Permission denied)
nginx: [emerg] mkdir() "/var/cache/nginx/client_temp" failed (13: Permission denied)
  • we need to create a service account and assign the anyuid SCC to it to get the app to run
  • login as admin
  • create the nginx-sa service account
❯ oc create sa nginx-sa                                                                               
serviceaccount/nginx-sa created
  • assign the anyuid SCC to nginx-sa
❯ oc adm policy add-scc-to-user anyuid -z nginx-sa   
clusterrole.rbac.authorization.k8s.io/system:openshift:scc:anyuid added: "nginx-sa"

  • log back in as developer (or leader)

  • assign the service account to the deployment

❯ oc set serviceaccount deployment/nginx nginx-sa
deployment.apps/nginx serviceaccount updated

This will cause the app to re-deploy and the app should run now

❯ oc get pods                                      
NAME                      READY   STATUS    RESTARTS   AGE
nginx-58c5496cd8-69s58   1/1     Running   0          87s
  • expose the service
oc expose service/nginx           
route.route.openshift.io/nginx exposed

create an edge route (https)

  • prereq: generate tls .crt and .key from inside the provided certs directory (run openssl-comands.sh)
  • create a secure route (edge)
❯ oc create route edge nginx-https --service nginx --hostname nginx-https.apps-crc.testing --key <file>.key --cert <file>.crt
route.route.openshift.io/nginx-https created

this route will be accessible with https://nginx-https.apps-crc.testing test with the curl -s -k https://<URL> command

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