ci-operator/step-registry/ipi/install: Drop TF_LOG from 'create manifests'

No Terraform involved in creating manifests.  Cleans up after
d11bca7 (create a hybrid cluster and run the e2e tests on it,
2020-04-01, openshift#8075).  Also removes trailing whitespace from the YAML
documentation.

Also backgrounds the 'create manifests' call and immediately waits for
it, so we can gracefully handle TERM as described in 4472ace
(ci-operator/templates/openshift/installer: Restore backgrounded
'create cluster', 2019-01-23, openshift#2680).

Author: wking

ci-operator/step-registry/ipi/install/install/ipi-install-install-commands.sh

@@ -35,16 +35,15 @@ cp "${SHARED_DIR}/install-config.yaml" "${dir}/"
 mkdir -p ~/.ssh
 cp "${SSH_PRIV_KEY_PATH}" ~/.ssh/
 
-
-TF_LOG=debug openshift-install --dir="${dir}" create manifests
+openshift-install --dir="${dir}" create manifests &
+wait "$!"
 
 while IFS= read -r -d '' item
 do
   manifest="$( basename "${item}" )"
   cp "${item}" "${dir}/manifests/${manifest##manifest_}"
 done <   <( find "${SHARED_DIR}" -name "manifest_*.yml" -print0)
 
-
 TF_LOG=debug openshift-install --dir="${dir}" create cluster 2>&1 | grep --line-buffered -v password &
 
 set +e

ci-operator/step-registry/ipi/install/install/ipi-install-install-ref.yaml

@@ -7,4 +7,4 @@ ref:
       cpu: 1000m
       memory: 2Gi
   documentation: |-
-    The IPI install step runs the OpenShift Installer in order to bring up an OpenShift cluster, using the provided cluster profile to choose a target IaaS platform. Anything that needs to be configured using manifests should generate them before this step and put them in the SHARED_DIR with the filename manifest_(manifest_name).yml so that this step can pull in the manifest in. 
+    The IPI install step runs the OpenShift Installer in order to bring up an OpenShift cluster, using the provided cluster profile to choose a target IaaS platform. Anything that needs to be configured using manifests should generate them before this step and put them in the SHARED_DIR with the filename manifest_(manifest_name).yml so that this step can pull in the manifest in.