powervs: add forwarder_port variable to configure it to a specific port

Adds option to configure port for agent-protocol-forwarder.

Fixes: #1457

Signed-off-by: Amulyam24 <amulmek1@in.ibm.com>

ibmcloud-powervs/README.md

@@ -37,14 +37,16 @@ cd cloud-api-adaptor/ibmcloud-powervs/image
 make build
 ```
 
-> If you intend to use DHCP network type for creating peer pod VMs with
+> NOTE: 
+> 1. If you intend to use DHCP network type for creating peer pod VMs with
 > PowerVS provider, you need to additionally add this to `image-prep.template`
 > ```
 > mkdir -p /etc/cloud/cloud.cfg.d
 > cat <<EOF >> /etc/cloud/cloud.cfg.d/99-custom-networking.cfg
 > network: {config: disabled}
 > EOF
 > ```
+> 2. To use a specific port or address for agent-protocol-forwarder, pass `FORWARDER_PORT=<port-number>` to the `make` command.
 
 2. Download the qcow2 image and converts into ova type
 ```

ibmcloud-powervs/image/Makefile

@@ -5,6 +5,8 @@
 SKOPEO_SRC =
 SKOPEO_BIN = /usr/bin/skopeo
 
+export FORWARDER_PORT ?=
+
 ROOT_DIR := $(dir $(lastword $(MAKEFILE_LIST)))../../
 include $(ROOT_DIR)podvm/Makefile.inc
 

ibmcloud-powervs/image/copy-files.sh

@@ -8,6 +8,13 @@ PODVM_DIR=${REPO_ROOT}/podvm
 sudo mkdir -p /etc/containers
 sudo cp ${PODVM_DIR}/files/etc/agent-config.toml /etc/agent-config.toml
 sudo cp /tmp/files/etc/aa-offline_fs_kbc-keys.json /etc/aa-offline_fs_kbc-keys.json
+
+if [ -n "${FORWARDER_PORT}" ]; then
+    cat <<END >> /etc/default/agent-protocol-forwarder 
+OPTIONS=-listen 0.0.0.0:${FORWARDER_PORT}
+END
+fi
+
 sudo cp -a ${PODVM_DIR}/files/etc/containers/* /etc/containers/
 sudo cp -a ${PODVM_DIR}/files/etc/systemd/* /etc/systemd/
 if [ -e ${PODVM_DIR}/files/etc/aa-offline_fs_kbc-resources.json ]; then