doc: update doc to add ibmcloud specific properties

Add more details to document to run e2e test on ibmcloud

Fixes: #1646

Signed-off-by: Yuan Yuan Wang <wyuany@cn.ibm.com>

ibmcloud/IMPORT_PODVM_TO_VPC.md

@@ -10,15 +10,24 @@ To simpify this process a script has been created to aid this. `ibmcloud/image/i
 
 - jq `apt install jq`
 - ibmcloud `curl -fsSL https://clis.cloud.ibm.com/install/linux | sh` (https://cloud.ibm.com/docs/cli?topic=cli-getting-started)
-- docker/podman `apt install docker.io`
+- docker/podman `apt install docker.io`    
+It's failed to install `docker` on Ubuntu20.04 with above single command. `docker` can be installed with `snap` as below.
+    ```
+    sudo snap install docker
+    sudo systemctl start snap.docker.dockerd
+    sudo systemctl enable snap.docker.dockerd
+    ```
 
 ### Cloud-Object-Storage
 
 To create the VPC image you need to first import the file to ibmcloud COS. The script will do this step but a bucket must already be available.
 
-You may follow the [offical documentation](https://cloud.ibm.com/docs/cloud-object-storage?topic=cloud-object-storage-getting-started-cloud-object-storage) to create a bucket, a free tier is sufficient.
+You may follow the [offical documentation](https://cloud.ibm.com/docs/cloud-object-storage?topic=cloud-object-storage-getting-started-cloud-object-storage) to create a bucket, a free tier is sufficient. Bucket region can be different from the VPC region.
 
 ## Running
+```
+Usage: ./import.sh <docker-image/qcow2-file> <vpc-region> [--bucket <name> --region <cos-region> --instance <cos-instance> --endpoint <cos-endpoint> --api <cloud-endpoint> --os <operating-system>]
+```
 
 ### Arguments
 

test/e2e/README.md

@@ -161,3 +161,32 @@ TEST_PROVISION=no \
 TEST_INSTALL_CAA=no \
 TEST_PROVISION_FILE="${PWD}/skip-provisioning.properties" \
 ```
+
+## IBM Cloud
+Take region `jp-tok` for example.
+```
+cd ../.. # go to project root
+cat <<EOF> skip-provisioning.properties
+REGION="jp-tok"
+ZONE="jp-tok-1"
+VPC_ID="<vpc-of-worker>"
+VPC_SUBNET_ID="<subnet-of-worker>"
+VPC_SECURITY_GROUP_ID="<security-group-of-vpc>"
+RESOURCE_GROUP_ID="<resource-group-id>"
+IBMCLOUD_PROVIDER="ibmcloud"
+APIKEY="<your-ibmcloud-apikey>"
+
+IAM_SERVICE_URL="https://iam.cloud.ibm.com/identity/token"
+VPC_SERVICE_URL="https://jp-tok.iaas.cloud.ibm.com/v1"
+IKS_SERVICE_URL="https://containers.cloud.ibm.com/global"
+PODVM_IMAGE_ID="<podvm-image-uploaded-previously>"
+INSTANCE_PROFILE_NAME="bz2-2x8"
+PODVM_IMAGE_ARCH="s390x"
+IMAGE_PULL_API_KEY="<can-be-same-as-apikey>"
+CAA_IMAGE_TAG="4ac087db10409a04e6d46d20ad08c39ad25b0778"
+EOF
+```
+
+- For `INSTANCE_PROFILE_NAME`, if it's not secure execution, the value is started with "bz2". If it's secure execution, the value is started with 'bz2e'. More values can be found through ibmcloud command `ibmcloud is instance-profiles`.
+- For `PODVM_IMAGE_ID`, the vpc image id uploaded to ibmcloud.
+- For `CAA_IMAGE_TAG`, the commit id of project. The commit id can be found here: https://github.com/confidential-containers/cloud-api-adaptor/commits/main/