Merge pull request 'Added info about generating tunnel secrets' (#1) from develop into main

Reviewed-on: #1

README.md

@@ -0,0 +1,32 @@
+## Secrets
+
+ansible vault secrets are stored in [group_vars/all/vault.yml](group_vars/all/vault.yml)
+
+Note that the directory path and filename are important.
+
+The format of the file is
+
+```yaml
+---
+become_pass: <ansible_user_become_pass>
+```
+
+Secrets required for Terraform can be stored in a file:
+
+ex. terraform/.secrets which is already ignored by Git
+
+Required variables:
+```shell
+export TF_VAR_cloudflare_token=<cloudflare_token>
+export TF_VAR_zone_id=<cloudflare_zone_id>
+export TF_VAR_account_id=<cloudflare_account_id>
+export TF_VAR_tunnel_secret=<tunnel_secret>
+```
+
+Note the cloudflare token requires Zone/DNS:edit and Account/Cloudflare Tunnel:edit privs
+
+I generate tunnel secrets with this command:
+
+```shell
+hexdump -vn32 -e'4/4 "%08X"' /dev/urandom | base64 -w0 -
+```

group_vars/all/vault.yml

@@ -1,7 +1,7 @@
 $ANSIBLE_VAULT;1.1;AES256
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+33303266623262323837643438633564353132393037366331653833393936323065653831343862
+6538393632346563636361363364366235336162373934643730