Update to Blynk local server including config files - 877dev

The original version did not create any config files and did not support email.

This commit fixes that, by making use of `directoryfix.sh` to create the config folder,
which contains two config files, `server.properties` and `mail.properties`.
Note that if they already exits they are not overwritten.

The Dockerfile has been updated to use the latest version 0.41.14,
and a parameter to use a custom mail.properties.

Server.properties should work "as is" for most people, but can be changed as required.
Mail.properties requires editing to add gmail credentials.
Service.yml updated to map the configs to the volumes folder.

A new readmeguide has been produced which needs adding to the main webpage, this can be found at
https://gist.github.com/877dev/cfa52044336e1e44d74156ce8b1458aa#file-blynk-setup-guide-md

Author: 877dev

.templates/blynk_server/Dockerfile

@@ -1,11 +1,11 @@
 FROM adoptopenjdk/openjdk11
-MAINTAINER Graham Garner <garner.gc@gmail.com>
+MAINTAINER 877dev <877dev@gmail.com>
 
 #RUN apt-get update 
 #RUN apt-get install -y apt-utils
 #RUN apt-get install -y default-jdk curl
 
-ENV BLYNK_SERVER_VERSION 0.41.10
+ENV BLYNK_SERVER_VERSION 0.41.14
 RUN mkdir /blynk
 RUN curl -L https://github.com/blynkkk/blynk-server/releases/download/v${BLYNK_SERVER_VERSION}/server-${BLYNK_SERVER_VERSION}.jar > /blynk/server.jar
 
@@ -22,4 +22,5 @@ VOLUME ["/config", "/data/backup"]
 EXPOSE 8080 9443
 
 WORKDIR /data
-ENTRYPOINT ["java", "-jar", "/blynk/server.jar", "-dataFolder", "/data", "-serverConfig", "/config/server.properties"]
+ENTRYPOINT ["java", "-jar", "/blynk/server.jar", "-dataFolder", "/data", "-serverConfig", "/config/server.properties", "-mailConfig", "/config/mail.properties"]
+

.templates/blynk_server/directoryfix.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+
+# Create config files for Blynk custom server
+# 877dev
+
+#current user
+u=$(whoami)
+
+#Check if the config directory already exists:
+if [ ! -d ./volumes/blynk_server/data/config ]; then
+	#Create the config directory
+    sudo mkdir -p ./volumes/blynk_server/data/config
+
+    #Create the properties files:
+	#cd ~/IOTstack/volumes/blynk_server/data/config
+    sudo touch ./volumes/blynk_server/data/config/server.properties
+    sudo touch ./volumes/blynk_server/data/config/mail.properties
+
+    #Give permissions:
+    sudo chown -R $u:$u ./volumes/blynk_server/data/config
+
+    #Populate the server.properties file:
+    sudo echo "hardware.mqtt.port=8440
+    http.port=8080
+    force.port.80.for.csv=false
+    force.port.80.for.redirect=true
+    https.port=9443
+    data.folder=./data
+    logs.folder=./logs
+    log.level=info
+    user.devices.limit=10
+    user.tags.limit=100
+    user.dashboard.max.limit=100
+    user.widget.max.size.limit=20
+    user.message.quota.limit=100
+    notifications.queue.limit=2000
+    blocking.processor.thread.pool.limit=6
+    notifications.frequency.user.quota.limit=5
+    webhooks.frequency.user.quota.limit=1000
+    webhooks.response.size.limit=96
+    user.profile.max.size=128
+    terminal.strings.pool.size=25
+    map.strings.pool.size=25
+    lcd.strings.pool.size=6
+    table.rows.pool.size=100
+    profile.save.worker.period=60000
+    stats.print.worker.period=60000
+    web.request.max.size=524288
+    csv.export.data.points.max=43200
+    hard.socket.idle.timeout=10
+    enable.db=false
+    enable.raw.db.data.store=false
+    async.logger.ring.buffer.size=2048
+    allow.reading.widget.without.active.app=false
+    allow.store.ip=true
+    initial.energy=1000000
+    admin.rootPath=/admin
+    restore.host=blynk-cloud.com
+    product.name=Blynk
+    [email protected]
+    admin.pass=admin
+    " > ./volumes/blynk_server/data/config/server.properties
+
+    #Populate the mail.properties file:
+    sudo echo "mail.smtp.auth=true
+    mail.smtp.starttls.enable=true
+    mail.smtp.host=smtp.gmail.com
+    mail.smtp.port=587
+    [email protected]
+    mail.smtp.password=YOUR_GMAIL_APP_PASSWORD
+    mail.smtp.connectiontimeout=30000
+    mail.smtp.timeout=120000
+    " > ./volumes/blynk_server/data/config/mail.properties
+
+    #Information messages:
+    echo "Sample properties files created in ~/IOTstack/volumes/blynk_server/data/config"
+    echo "Make sure you edit the files with your details, and restart the container to take effect."
+
+
+
+fi

.templates/blynk_server/service.yml

@@ -3,8 +3,9 @@
     container_name: blynk_server
     restart: unless-stopped
     ports:
-      - "8180:8080"
-      - "8441:8441"
-      - "9443:9443"
+      - 8180:8080
+      - 8441:8441
+      - 9443:9443
     volumes:
       - ./volumes/blynk_server/data:/data
+      - ./volumes/blynk_server/data/config:/config