Adding support for deployment_key for git_pull addon (#196)

* adding support for deployment_key for git_pull addon

* safer usage of bash vars

* fixed $HOME vs ~ typo

* more specific schema for deployment_key_protocol

* adding ssh-client to git pull addon image

* only ...-client package needed

* Pump version to 2.0

git_pull/Dockerfile

@@ -5,7 +5,7 @@ FROM $BUILD_FROM
 ENV LANG C.UTF-8
 
 # Setup base
-RUN apk add --no-cache jq curl git
+RUN apk add --no-cache jq curl git openssh-client
 
 # Copy data
 COPY run.sh /

git_pull/config.json

@@ -1,6 +1,6 @@
 {
   "name": "Git pull",
-  "version": "1.1",
+  "version": "2.0",
   "slug": "git_pull",
   "description": "Simple git pull to update the local configuration",
   "url": "https://home-assistant.io/addons/git_pull/",
@@ -9,6 +9,8 @@
   "hassio_api": true,
   "map": ["config:rw"],
   "options": {
+    "deployment_key": [],
+    "deployment_key_protocol": "rsa",
     "repository": null,
     "auto_restart": false,
     "repeat": {
@@ -17,6 +19,8 @@
     }
   },
   "schema": {
+    "deployment_key": ["str"],
+    "deployment_key_protocol": "match(rsa|dsa|ecdsa|ed25519|rsa)",
     "repository": "url",
     "auto_restart": "bool",
     "repeat": {

git_pull/run.sh

@@ -3,11 +3,26 @@ set -e
 
 CONFIG_PATH=/data/options.json
 
+DEPLOYMENT_KEY=$(jq --raw-output ".deployment_key[]" $CONFIG_PATH)
+DEPLOYMENT_KEY_PROTOCOL=$(jq --raw-output ".deployment_key_protocol" $CONFIG_PATH)
 REPOSITORY=$(jq --raw-output '.repository' $CONFIG_PATH)
 AUTO_RESTART=$(jq --raw-output '.auto_restart' $CONFIG_PATH)
 REPEAT_ACTIVE=$(jq --raw-output '.repeat.active' $CONFIG_PATH)
 REPEAT_INTERVAL=$(jq --raw-output '.repeat.interval' $CONFIG_PATH)
 
+# prepare the private key, if provided
+if [ ! -z "$DEPLOYMENT_KEY" ]; then
+    echo "[Info] setup deployment_key on id_${DEPLOYMENT_KEY_PROTOCOL}"
+
+    mkdir -p ~/.ssh
+    while read -r line; do
+        echo "$line" >> "${HOME}/.ssh/id_${DEPLOYMENT_KEY_PROTOCOL}"
+    done <<< "$DEPLOYMENT_KEY"
+
+    chmod 600 "${HOME}/.ssh/id_${DEPLOYMENT_KEY_PROTOCOL}"
+fi
+
+
 # init config repositorie
 if [ ! -d /config/.git ]; then
     echo "[Info] cleanup config folder and clone from repositorie"