Added 'notes' section to blog

- this will be a place to put short-form notes that do not
  deserve a dedicated blog post, but I still find useful

Author: tcdowney

blog/_config.yml

@@ -28,3 +28,7 @@ assets:
   sources:
     - _assets/javascripts
     - _assets/stylesheets
+
+collections:
+  notes:
+    output: true

blog/_notes/dev/create-cloud-foundry-read-only-admin.md

@@ -0,0 +1,49 @@
+---
+layout: post
+type: note
+title: "Creating a Cloud Foundry Read-only Admin User"
+color: green
+icon: fa-code
+date: 2018-02-15
+categories:
+  - programming
+  - cloud foundry
+---
+I wanted to create a section of my site where I can drop off little one-off posts or snippets mostly for my own personal (future) use. This is the inaugural note! 😁
+
+My personal flow for creating a "readonly admin" user on a [bosh-lite](https://github.com/cloudfoundry/bosh-lite) with a director that stores secrets in CredHub while developing Cloud Foundry:
+
+```bash
+export BOSH_LITE_DOMAIN=<some-bosh-lite-domain>
+export CREDHUB_SERVER="<credhub-server-address>:<credhub-port>"
+export CREDHUB_CLIENT=<credhub-client-name>
+export CREDHUB_SECRET=<credhub-client-secret>
+
+# Log in to CredHub
+credhub login --skip-tls-validation # bosh-lites typically have self-signed certs
+
+# Fetch password for cf admin user from CredHub and authenticate with UAA
+cf_admin_pass=$(credhub get --name '/bosh-lite/cf/cf_admin_password' --output-json | jq -r '.value')
+cf api https://api.${BOSH_LITE_DOMAIN} --skip-ssl-validation
+cf auth admin $cf_admin_pass
+
+# Create user to be readonly admin
+cf create-user readonly-admin <password>
+
+# Fetch UAA admin client credentials from CredHub
+uaa_secret=$(credhub get --name '/bosh-lite/cf/uaa_admin_client_secret' --output-json | jq -r '.value')
+
+# Authenticate with UAA
+uaac target uaa.${BOSH_LITE_DOMAIN} --skip-ssl-validation
+uaac token client get admin -s $uaa_secret
+
+uaac group add cloud_controller.admin_read_only # if it does not already exist
+uaac member add cloud_controller.admin_read_only readonly-admin
+```
+
+The following scripts automate this a bit, but I don't always have a workstation set up to use them handy:
+* [target-uaa](https://github.com/cloudfoundry/capi-release/blob/67c59ab59c1f1f7cebab3969e500da6ed4a6549b/scripts/target-uaa)
+* [target-cf](https://github.com/cloudfoundry/capi-release/blob/67c59ab59c1f1f7cebab3969e500da6ed4a6549b/scripts/target-cf)
+
+More detailed docs:
+* [https://docs.cloudfoundry.org/uaa/uaa-user-management.html#admin-read-only](https://docs.cloudfoundry.org/uaa/uaa-user-management.html#admin-read-only)