cloud: Adding Google Cloud IoT docker composer app support

google-iotsdk/Dockerfile

@@ -0,0 +1,31 @@
+FROM debian:10.3-slim
+ARG DEBIAN_FRONTEND=noninteractive
+
+# [UBUNTU]
+RUN apt-get update && \
+    apt-get install -y python3 git ca-certificates curl \
+        cmake build-essential libssl-dev python3-dev python3-pip zlib1g-dev openssl uuid-runtime libffi-dev 
+
+# install python3 dependencies in advance -- we can copy them later
+RUN python3 -m pip install --no-cache --upgrade pip && \
+    python3 -m pip install --no-cache --upgrade setuptools wheel psutil
+
+RUN python3 -m pip install --no-cache --upgrade cryptography>=2.9.2
+RUN python3 -m pip install --no-cache --upgrade google-api-python-client>=1.9.3
+RUN python3 -m pip install --no-cache --upgrade google-auth-httplib2>=0.0.3
+RUN python3 -m pip install --no-cache --upgrade google-auth>=1.18.0
+RUN python3 -m pip install --no-cache --upgrade google-cloud-pubsub>=1.6.0
+RUN python3 -m pip install --no-cache --upgrade google-cloud-iot>=1.0.0
+RUN python3 -m pip install --no-cache --upgrade grpc-google-iam-v1>=0.12.3
+RUN python3 -m pip install --no-cache --upgrade pyjwt>=1.7.1
+RUN python3 -m pip install --no-cache --upgrade paho-mqtt>=1.5.0
+
+
+RUN mkdir -p /config
+RUN mkdir -p /google-iotsdk
+RUN mkdir -p /prov
+
+WORKDIR /
+COPY google-iotsdk/* /google-iotsdk/
+
+ENTRYPOINT ["/google-iotsdk/start.sh"]

google-iotsdk/config/google.config

@@ -0,0 +1,3 @@
+PROJECT_ID=homeassistant-281519
+REGISTRY_ID=homeassistant-registry
+DEVICE_ID=google-device

google-iotsdk/config/google.json

@@ -0,0 +1,12 @@
+{
+  "type": "service_account",
+  "project_id": "XXXXXX-281519",
+  "private_key_id": "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
+  "private_key": "-----BEGIN PRIVATE KEY-----\iXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\n-----END PRIVATE KEY-----\n",
+  "client_email": "raspberry@homeassistant-281519.iam.gserviceaccount.com",
+  "client_id": "XXXXXXXXXXXXX",
+  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+  "token_uri": "https://oauth2.googleapis.com/token",
+  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/raspberry%40homeassistant-281519.iam.gserviceaccount.com"
+}

google-iotsdk/docker-compose.yml

@@ -0,0 +1,17 @@
+# google-iotsdk/docker-compose.yml
+version: "3"
+services:
+  google-iotsdk:
+    image: hub.foundries.io/<YOUR_FACTORY_NAME>/google-iotsdk:latest
+    tmpfs:
+        - /run
+        - /var/lock
+        - /var/log
+    volumes:
+        - /var/run/secrets:/config
+    environment:
+        - GOOGLE_APPLICATION_CREDENTIALS=/config/google.json
+    tty: true
+    network_mode: "host"
+    privileged: true
+    restart: always

google-iotsdk/google-iotsdk/provision.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# create the device certificate
+#
+# On the first connection attempt, it will trigger the google thing creation,
+# registration and so forth 
+
+PROV_DIR=${1:-/prov}
+DEVICE_ID_FILE=${2:-/prov/thing_name}
+
+GOOGLE_CONFIG_CREDENTIAL="/config/google.json"
+
+if [ -f "$DEVICE_ID_FILE" ]; then
+    echo "$DEVICE_ID_FILE exists."
+else
+    while [ ! -f $GOOGLE_CONFIG_CREDENTIAL ]
+    do
+        sleep 5 # or less like 0.2
+        echo "Waiting $GOOGLE_CONFIG_CREDENTIAL"
+    done
+        ls -l $GOOGLE_CONFIG_CREDENTIAL
+        DEVICE_UUID=$(uuidgen)
+        DEVICE_ID="fio-google-${DEVICE_UUID}"
+        echo "[provision] Device name: ${DEVICE_ID}"
+        echo "${DEVICE_ID}" > "${PROV_DIR}/thing_name"
+        openssl req -x509 -newkey rsa:2048 -keyout ${PROV_DIR}/rsa_private.pem -nodes -out ${PROV_DIR}/rsa_cert.pem -subj "/CN=unused"
+fi
+
+DEVICE_ID="$(cat ${PROV_DIR}/thing_name)"
+echo "[provision] Device name: ${DEVICE_ID}"
+export GOOGLE_APPLICATION_CREDENTIALS="$GOOGLE_CONFIG_CREDENTIAL"
+echo "9"
+
+