Unable to start backend when AZURE_TOKEN is set

If there is

integrations:
  azure:
    - host: dev.azure.com
      token:
        $env: AZURE_TOKEN

in my app-config.yaml and if I try to start the backend from packages/backend in this mono-repo, the backend seems to be stuck, and the port 7000 is never engaged.

Stuck backend logs

backstage/packages/backend  master ✗                                                                                                                                                          21m ⚑
▶ AZURE_TOKEN="xyz"  yarn start
yarn run v1.22.1
$ backstage-cli backend:dev
Build succeeded
2021-01-21T09:56:45.328Z backstage info Loaded config from app-config.yaml, app-config.local.yaml
2021-01-21T09:56:45.333Z backstage info Created UrlReader predicateMux{readers=azure{host=dev.azure.com,authed=true},bitbucket{host=bitbucket.org,authed=false},github{host=github.com,authed=false},gitlab{host=gitlab.com,authed=false},fetch{}
2021-01-21T09:56:45.455Z catalog info Locations Refresh: Beginning locations refresh type=plugin component=catalog-all-locations-refresh
2021-01-21T09:56:45.473Z catalog info Locations Refresh: Visiting 1 locations type=plugin component=catalog-all-locations-refresh
2021-01-21T09:56:45.473Z catalog info Locations Refresh: Refreshing location bootstrap:bootstrap type=plugin component=catalog-all-locations-refresh
2021-01-21T09:56:46.147Z catalog info Read 63 entities from location bootstrap:bootstrap in 674ms type=plugin
2021-01-21T09:56:46.241Z catalog info Wrote 63 entities from location bootstrap:bootstrap in 94ms type=plugin
2021-01-21T09:56:46.242Z catalog info Locations Refresh: Completed locations refresh in 787ms type=plugin component=catalog-all-locations-refresh
^CStopped watcher

But by either not setting AZURE_TOKEN when doing yarn start, or by removing the integrations.azure from app-config.yaml, the backend is able to start as usual.

Successful backend logs

backstage/packages/backend  master ✗                                                                                                                                                          22m ⚑
▶ yarn start
yarn run v1.22.1
$ backstage-cli backend:dev
Build succeeded
2021-01-21T10:00:08.719Z backstage info Loaded config from app-config.yaml, app-config.local.yaml
2021-01-21T10:00:08.725Z backstage info Created UrlReader predicateMux{readers=azure{host=dev.azure.com,authed=false},bitbucket{host=bitbucket.org,authed=false},github{host=github.com,authed=false},gitlab{host=gitlab.com,authed=false},fetch{}
2021-01-21T10:00:08.857Z catalog info Locations Refresh: Beginning locations refresh type=plugin component=catalog-all-locations-refresh
2021-01-21T10:00:08.862Z scaffolder warn 'Specifying credentials for Azure in the Scaffolder configuration is deprecated. This will cause errors in a future release. Please migrate to using integrations config and specifying tokens under hostnames' type=plugin
2021-01-21T10:00:08.863Z scaffolder warn 'Specifying credentials for GitHub in the Scaffolder configuration is deprecated. This will cause errors in a future release. Please migrate to using integrations config and specifying tokens under hostnames' type=plugin
2021-01-21T10:00:08.863Z scaffolder warn 'Specifying credentials for Gitlab in the Scaffolder configuration is deprecated. This will cause errors in a future release. Please migrate to using integrations config and specifying tokens under hostnames' type=plugin
2021-01-21T10:00:08.867Z catalog info Locations Refresh: Visiting 1 locations type=plugin component=catalog-all-locations-refresh
2021-01-21T10:00:08.867Z catalog info Locations Refresh: Refreshing location bootstrap:bootstrap type=plugin component=catalog-all-locations-refresh
2021-01-21T10:00:08.875Z auth info Configuring provider, google type=plugin
2021-01-21T10:00:08.876Z auth warn Skipping google auth provider, Missing required config value at 'auth.providers.google.development.clientId' type=plugin
2021-01-21T10:00:08.876Z auth info Configuring provider, github type=plugin
2021-01-21T10:00:08.876Z auth warn Skipping github auth provider, Missing required config value at 'auth.providers.github.development.clientId' type=plugin
2021-01-21T10:00:08.876Z auth info Configuring provider, gitlab type=plugin
2021-01-21T10:00:08.876Z auth warn Skipping gitlab auth provider, Missing required config value at 'auth.providers.gitlab.development.clientId' type=plugin
2021-01-21T10:00:08.876Z auth info Configuring provider, saml type=plugin
2021-01-21T10:00:08.877Z auth info Configuring provider, okta type=plugin
2021-01-21T10:00:08.878Z auth warn Skipping okta auth provider, Missing required config value at 'auth.providers.okta.development.clientId' type=plugin
2021-01-21T10:00:08.878Z auth info Configuring provider, oauth2 type=plugin
2021-01-21T10:00:08.878Z auth warn Skipping oauth2 auth provider, Missing required config value at 'auth.providers.oauth2.development.clientId' type=plugin
2021-01-21T10:00:08.878Z auth info Configuring provider, oidc type=plugin
2021-01-21T10:00:08.878Z auth warn Skipping oidc auth provider, Missing required config value at 'auth.providers.oidc.development.clientId' type=plugin
2021-01-21T10:00:08.878Z auth info Configuring provider, auth0 type=plugin
2021-01-21T10:00:08.878Z auth warn Skipping auth0 auth provider, Missing required config value at 'auth.providers.auth0.development.clientId' type=plugin
2021-01-21T10:00:08.878Z auth info Configuring provider, microsoft type=plugin
2021-01-21T10:00:08.879Z auth warn Skipping microsoft auth provider, Missing required config value at 'auth.providers.microsoft.development.clientId' type=plugin
2021-01-21T10:00:08.879Z auth info Configuring provider, onelogin type=plugin
2021-01-21T10:00:08.879Z auth warn Skipping onelogin auth provider, Missing required config value at 'auth.providers.onelogin.development.clientId' type=plugin
2021-01-21T10:00:08.880Z techdocs info Creating Local publisher for TechDocs type=plugin
2021-01-21T10:00:08.881Z kubernetes info Initializing Kubernetes backend type=plugin
2021-01-21T10:00:08.882Z kafka info Initializing Kafka backend type=plugin
2021-01-21T10:00:08.885Z proxy info [HPM] Proxy created: [Function: filter]  ->  https://circleci.com/api/v1.1 type=plugin
2021-01-21T10:00:08.885Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/circleci/api/" ~> "/" type=plugin
2021-01-21T10:00:08.887Z proxy info [HPM] Proxy created: [Function: filter]  ->  http://localhost:8080 type=plugin
2021-01-21T10:00:08.887Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/jenkins/api/" ~> "/" type=plugin
2021-01-21T10:00:08.887Z proxy info [HPM] Proxy created: [Function: filter]  ->  https://api.travis-ci.com type=plugin
2021-01-21T10:00:08.887Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/travisci/api/" ~> "/" type=plugin
2021-01-21T10:00:08.887Z proxy info [HPM] Proxy created: [Function: filter]  ->  https://api.newrelic.com/v2 type=plugin
2021-01-21T10:00:08.888Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/newrelic/apm/api/" ~> "/" type=plugin
2021-01-21T10:00:08.888Z proxy info [HPM] Proxy created: [Function: filter]  ->  https://api.pagerduty.com type=plugin
2021-01-21T10:00:08.888Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/pagerduty/" ~> "/" type=plugin
2021-01-21T10:00:08.888Z proxy info [HPM] Proxy created: [Function: filter]  ->  https://api.buildkite.com/v2/ type=plugin
2021-01-21T10:00:08.888Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/buildkite/api/" ~> "/" type=plugin
2021-01-21T10:00:08.889Z proxy info [HPM] Proxy created: [Function: filter]  ->  https://sentry.io/api/ type=plugin
2021-01-21T10:00:08.889Z proxy info [HPM] Proxy rewrite rule created: "^/api/proxy/sentry/api/" ~> "/" type=plugin
2021-01-21T10:00:08.940Z app warn Can't serve static app content from /Users/himanshum/workspace/github.com/backstage/backstage/packages/app/dist/static, directory doesn't exist type=plugin
2021-01-21T10:00:08.941Z backstage info Initializing http server
2021-01-21T10:00:08.945Z backstage info Listening on :7000
2021-01-21T10:00:09.836Z catalog info Read 63 entities from location bootstrap:bootstrap in 969ms type=plugin
2021-01-21T10:00:09.929Z catalog info Wrote 63 entities from location bootstrap:bootstrap in 93ms type=plugin
2021-01-21T10:00:09.930Z catalog info Locations Refresh: Completed locations refresh in 1.1s type=plugin component=catalog-all-locations-refresh

My guess is a “setup for Azure” is being stuck in this case. Noticed it today, and it used to work yesterday I think.

[freben]

Good find, thanks for looking into it so well. We’re working on a fix asap to get into the release

[OrkoHunter]

Sounds good, thanks! 😃