kata-deploy: add PULL_TYPE handler for CRI-O

A new PULL_TYPE environment variable is recognized by the kata-deploy's
install script to allow it to configure CRIO-O for guest-pull image pulling
type.

The tests/integration/kubernetes/gha-run.sh change allows for testing it:
```
export PULL_TYPE=guest-pull
cd tests/integration/kubernetes
./gha-run.sh deploy-k8s
```

Fixes #9474
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>

tools/packaging/kata-deploy/kata-deploy/base/kata-deploy.yaml

@@ -24,6 +24,7 @@ spec:
               exec:
                 command: ["bash", "-c", "/opt/kata-artifacts/scripts/kata-deploy.sh cleanup"]
           command: ["bash", "-c", "/opt/kata-artifacts/scripts/kata-deploy.sh install"]
+          # NOTE: Please don't change the order of the environment variables below.
           env:
             - name: NODE_NAME
               valueFrom:
@@ -47,6 +48,8 @@ spec:
               value: ""
             - name: AGENT_NO_PROXY
               value: ""
+            - name: PULL_TYPE_MAPPING
+              value: ""
           securityContext:
             privileged: true
           volumeMounts:

tools/packaging/kata-deploy/scripts/kata-deploy.sh

@@ -32,6 +32,9 @@ snapshotters_delimiter=':'
 AGENT_HTTPS_PROXY="${AGENT_HTTPS_PROXY:-}"
 AGENT_NO_PROXY="${AGENT_NO_PROXY:-}"
 
+PULL_TYPE_MAPPING="${PULL_TYPE_MAPPING:-}"
+IFS=',' read -a pull_types <<< "$PULL_TYPE_MAPPING"
+
 # If we fail for any reason a message will be displayed
 die() {
         msg="$*"
@@ -426,6 +429,27 @@ function configure_crio_runtime() {
 	runtime_config_path = "${kata_config_path}"
 	privileged_without_host_devices = true
 EOF
+
+	local key
+	local value
+	if [ -n "${PULL_TYPE_MAPPING}" ]; then
+		for m in "${pull_types[@]}"; do
+			key="${m%"$snapshotters_delimiter"*}"
+			value="${m#*"$snapshotters_delimiter"}"
+
+			if [[ "${value}" = "default" || "${key}" != "${shim}" ]]; then
+				continue
+			fi
+
+			if [ "${value}" == "guest-pull" ]; then
+				echo -e "\truntime_pull_image = true" | \
+					tee -a "$crio_drop_in_conf_file"
+			else
+				die "Unsupported pull type '$value' for ${shim}"
+			fi
+			break
+		done
+	fi
 }
 
 function configure_crio() {
@@ -616,6 +640,7 @@ function main() {
 	echo "* SNAPSHOTTER_HANDLER_MAPPING: ${SNAPSHOTTER_HANDLER_MAPPING}"
 	echo "* AGENT_HTTPS_PROXY: ${AGENT_HTTPS_PROXY}"
 	echo "* AGENT_NO_PROXY: ${AGENT_NO_PROXY}"
+	echo "* PULL_TYPE_MAPPING: ${PULL_TYPE_MAPPING}"
 
 	# script requires that user is root
 	euid=$(id -u)