Also generated tfvars from apps.config.

.gitignore

@@ -17,4 +17,6 @@ app
 
 apps.config
 
-all-apps/lb/Caddyfile
+# generated files
+all-apps/lb/Caddyfile
+generated.tfvars

Makefile

@@ -12,11 +12,14 @@ all-apps/lb/Caddyfile: apps.config make-caddyfile.sh
 ignition.json: cl.yaml app/.dirstamp all-apps/lb/Caddyfile
 	cat cl.yaml | sudo docker run --rm --volume /home/tjhintz/.ssh/id_rsa.pub:/pwd/ssh-keys --volume ${PWD}:/pwd --workdir /pwd -i quay.io/coreos/butane:latest -d /pwd > ignition.json
 
-plan: ignition.json
-	terraform plan -var-file $(TERRAFORM_ENV).tfvars
+generated.tfvars: apps.config make-generated.sh
+	./make-generated.sh > generated.tfvars
 
-apply: ignition.json
-	terraform apply -var-file $(TERRAFORM_ENV).tfvars
+plan: ignition.json $(TERRAFORM_ENV).tfvars generated.tfvars
+	bash -c "terraform plan -var-file=<(cat $(TERRAFORM_ENV).tfvars generated.tfvars)"
+
+apply: ignition.json $(TERRAFORM_ENV).tfvars generated.tfvars
+	bash -c "terraform apply -var-file=<(cat $(TERRAFORM_ENV).tfvars generated.tfvars)"
 
 ## to help me remember the command to run to test the config locally
 testlocalhost:

make-generated.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# this script generates the shared values for the
+# terraform config (domain & subdomain variables)
+
+# it depends on apps.config which should define:
+# ROOT_DOMAIN - the root domain for all apps
+# APP_CONFIGS - app-subdomain pairs, configured via a comma, like:
+#   app1,subdomain1 app2,subdomain2 app3,subdomain3
+# full example:
+#   ROOT_DOMAIN=nassella.cc
+#   APP_CONFIGS="app1,subdomain1 app2,subdomain2 app3,subdomain3"
+
+set -e
+
+. apps.config
+
+read -r -a APP_CONFIGS <<< "$APP_CONFIGS"
+APP_CONFIGS+=('lb,root')
+
+echo "domain = \"$ROOT_DOMAIN\""
+echo -n "subdomains = ["
+
+separator=''
+
+for config_string in ${APP_CONFIGS[@]}; do
+    IFS=','
+    read -r -a config <<< "$config_string"
+
+    subdomain=${config[1]}
+
+    echo -n "$separator"
+    echo -n "\"$subdomain\""
+
+    separator=', '
+done
+
+echo "]"
+
+