[DOC] Update hierarchical terraform example (#65)

Signed-off-by: costimuraru <[email protected]>

Author: costimuraru

examples/features/terraform-hierarchical/.opsconfig.yaml

@@ -1,9 +1,10 @@
 ---
-compositions_order:
-  terraform:
-    - account
-    - network
-    - cluster
-    - spinnaker
-  helmfile:
-    - helmfiles
+compositions:
+  order:
+    terraform:
+      - account
+      - network
+      - cluster
+      - spinnaker
+    helmfile:
+      - helmfiles

examples/features/terraform-hierarchical/README.md

@@ -1,3 +1,5 @@
+Note that you need the `.opsconfig.yaml` file (which is already present in this folder) for this to work.
+
 1. Run 'terraform plan' for all compositions for a given cluster:
 ```sh
 # generates config and runs terraform
@@ -12,4 +14,9 @@ ops config/env=dev/cluster=cluster1 terraform apply --skip-plan
 3. Run a single composition:
 ```sh
 ops config/env=dev/cluster=cluster1/composition=network terraform apply --skip-plan
-```
+```
+
+4. If you only want to generate and view the config you can run:
+```sh
+ops config/env=dev/cluster=cluster1/composition=network config
+```

requirements.txt

@@ -14,5 +14,5 @@ hvac==0.9.3
 passgen
 inflection==0.3.1
 kubernetes==9.0.0
-himl==0.2.1
+himl==0.2.2
 six