feat(container-pull-script): Add the param to get the correct CID depending the agent-type (#252)

* Add the param to get the correct CID depending the agent-type

* update readme

updating readme to trigger a new check

* fixing shell format issue

* chore: remove redundant use of FALCON_CID

* docs: update description

---------

Co-authored-by: Falcon Pioupiou <[email protected]>
Co-authored-by: Carlos Matos <[email protected]>

Author: falcon-pioupiou

bash/containers/falcon-container-sensor-pull/README.md

@@ -59,6 +59,7 @@ Optional Flags:
     --runtime                         use a different container runtime [docker, podman, skopeo]. Default is docker.
     --dump-credentials                print registry credentials to stdout to copy/paste into container tools.
     --get-pull-token                  get the pull token of the selected SENSOR_TYPE for Kubernetes.
+    --get-cid                         Get the CID assigned to the API Credentials.
     --list-tags                       list all tags available for the selected sensor
     --allow-legacy-curl               allow the script to run with an older version of curl
 
@@ -83,6 +84,7 @@ Help Options:
 | `--runtime`                                    | `$CONTAINER_TOOL`       | `docker` (Optional)        | Use a different container runtime [docker, podman, skopeo]. **Default is Docker**.       |
 | `--dump-credentials`                           | `$CREDS`                | `False` (Optional)         | Print registry credentials to stdout to copy/paste into container tools                  |
 | `--get-pull-token`                             | N/A                     | `None`                     | Get the pull token of the selected SENSOR_TYPE for Kubernetes.                           |
+| `--get-cid`                                    | N/A                     | `None`                     | Get the CID assigned to the API Credentials.                                             |
 | `--list-tags`                                  | `$LISTTAGS`             | `False` (Optional)         | List all tags available for the selected sensor                                          |
 | `--allow-legacy-curl`                          | `$ALLOW_LEGACY_CURL`    | `False` (Optional)         | Allow the script to run with an older version of cURL                                    |
 | `-h`, `--help`                                 | N/A                     | `None`                     | Display help message                                                                     |
@@ -137,6 +139,18 @@ The following example will generate a pull token for the Falcon Container sensor
 --get-pull-token
 ```
 
+#### Example getting the CID
+
+The following example will get the CID for the Falcon Sensor configuration for kubernetes deployment.
+
+```shell
+./falcon-container-sensor-pull.sh \
+--client-id <FALCON_CLIENT_ID> \
+--client-secret <FALCON_CLIENT_SECRET> \
+--type falcon-sensor \
+--get-cid
+```
+
 #### Example dumping credentials
 
 The following example will dump the credentials to stdout to copy/paste into container tools.

bash/containers/falcon-container-sensor-pull/falcon-container-sensor-pull.sh

@@ -25,6 +25,7 @@ Optional Flags:
     --runtime                         use a different container runtime [docker, podman, skopeo]. Default is docker.
     --dump-credentials                print registry credentials to stdout to copy/paste into container tools.
     --get-pull-token                  Get the pull token of the selected SENSOR_TYPE for Kubernetes.
+    --get-cid                         Get the CID assigned to the API Credentials.
     --list-tags                       list all tags available for the selected sensor type and platform(optional)
     --allow-legacy-curl               allow the script to run with an older version of curl
 
@@ -119,6 +120,11 @@ while [ $# != 0 ]; do
                 PULLTOKEN=true
             fi
             ;;
+        --get-cid)
+            if [ -n "${1}" ]; then
+                GETCID=true
+            fi
+            ;;
         --list-tags)
             if [ -n "${1}" ]; then
                 LISTTAGS=true
@@ -311,7 +317,6 @@ cs_registry="registry.crowdstrike.com"
 if [ "${FALCON_CLOUD}" = "us-gov-1" ]; then
     cs_registry="registry.laggar.gcw.crowdstrike.com"
 fi
-FALCON_CID=$(echo "${FALCON_CID}" | cut -d'-' -f1 | tr '[:upper:]' '[:lower:]')
 SENSOR_VERSION=$(echo "$SENSOR_VERSION" | tr '[:upper:]' '[:lower:]')
 SENSOR_PLATFORM=$(echo "$SENSOR_PLATFORM" | tr '[:upper:]' '[:lower:]')
 COPY=$(echo "$COPY" | tr '[:upper:]' '[:lower:]')
@@ -394,16 +399,26 @@ registry_opts=$(
     fi
 )
 
-cs_falcon_cid=$(
+cs_falcon_cid_with_checksum=$(
     if [ -n "$FALCON_CID" ]; then
-        echo "$FALCON_CID" | cut -d'-' -f1 | tr '[:upper:]' '[:lower:]'
+        echo "$FALCON_CID"
     else
         cs_target_cid=$(curl_command "$cs_falcon_oauth_token" "https://$(cs_cloud)/sensors/queries/installers/ccid/v1")
-        echo "$cs_target_cid" | tr -d '\n" ' | awk -F'[][]' '{print $2}' | cut -d'-' -f1 | tr '[:upper:]' '[:lower:]'
+        echo "$cs_target_cid" | tr -d '\n" ' | awk -F'[][]' '{print $2}'
     fi
 )
+cs_falcon_cid=$(echo "$cs_falcon_cid_with_checksum" | cut -d'-' -f1 | tr '[:upper:]' '[:lower:]')
+
+if [ "$GETCID" ]; then
+    if [ "${SENSOR_TYPE}" = "kpagent" ]; then
+        echo "${cs_falcon_cid}"
+    else
+        echo "${cs_falcon_cid_with_checksum}"
+    fi
+    exit 0
+fi
 
-if [ ! "$LISTTAGS" ] && [ ! "$PULLTOKEN" ]; then
+if [ ! "$LISTTAGS" ] && [ ! "$PULLTOKEN" ] && [ ! "$GETIMAGEREPOTAG" ]; then
     echo "Using the following settings:"
     echo "Falcon Region:   $(cs_cloud)"
     echo "Falcon Registry: ${cs_registry}"