https://github.com/woahbase/alpine-blynk
Blynkkk server for MCU/IOT devices built on Alpine + OpenJDK8
https://github.com/woahbase/alpine-blynk
alpine blynk docker iot openjdk
Last synced: 2 months ago
JSON representation
Blynkkk server for MCU/IOT devices built on Alpine + OpenJDK8
- Host: GitHub
- URL: https://github.com/woahbase/alpine-blynk
- Owner: woahbase
- Created: 2018-02-07T09:07:09.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2019-05-15T16:50:36.000Z (about 7 years ago)
- Last Synced: 2023-10-20T04:14:05.398Z (over 2 years ago)
- Topics: alpine, blynk, docker, iot, openjdk
- Language: Makefile
- Homepage: https://woahbase.online/#/images/alpine-blynk
- Size: 7.81 KB
- Stars: 0
- Watchers: 2
- Forks: 2
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
[![build status][251]][232] [![commit][255]][231] [![version:x86_64][256]][235] [![size:x86_64][257]][235] [![version:armhf][258]][236] [![size:armhf][259]][236]
## [Alpine-Blynk][234]
#### Container for Alpine Linux + OpenJDK8 + Blynk Server
---
This [image][233] containerizes [Blynk][135] IOT server,
a platform for visualizing/controlling microcontrollers like
Arduino, RaspberryPi etc that use their [library][138], over the
web, running under [OpenJDK][136] 8.\*.\*.
Based on [Alpine Linux][131] from my [alpine-openjdk8][132] image
with the [s6][133] init system and GNU LibC [overlayed][134] in
it.
**Auto updated according to the [Github][137] releases.**
The image is tagged respectively for the following architectures,
* **armhf**
* **x86_64** (retagged as the `latest` )
**armhf** builds have embedded binfmt_misc support and contain the
[qemu-user-static][105] binary that allows for running it also inside
an x64 environment that has it.
---
#### Get the Image
---
Pull the image for your architecture it's already available from
Docker Hub.
```
# make pull
docker pull woahbase/alpine-blynk:x86_64
```
---
#### Configuration defaults
---
* Blynk home is at `/opt/blynk`. User data is at
`/opt/blynk/data`. Mount this directory in local to persist
blynk configuration data.
* Default configurations for server and mail is provided right
inside the Blynk home directory as `/opt/blynk/server.properties` and
`/opt/blynk/mail.properties`. Edit or remount these files to use
custom configurations.
* By default, Blynk binds to the following ports :
* 7443: Administration UI HTTPS port
* 8080: HTTP port
* 8081: Web socket ssl/tls port
* 8082: Web sockets plain tcp/ip port
* 8441: Hardware ssl/tls port (for hardware that supports SSL/TLS sockets)
* 8442: Hardware plain tcp/ip port
* 8443: Application mutual ssl/tls port
* 9443: HTTPS port
---
#### Run
---
If you want to run images for other architectures, you will need
to have binfmt support configured for your machine. [**multiarch**][104],
has made it easy for us containing that into a docker container.
```
# make regbinfmt
docker run --rm --privileged multiarch/qemu-user-static:register --reset
```
Without the above, you can still run the image that is made for your
architecture, e.g for an x86_64 machine..
This image already has a user `alpine` configured to drop
privileges to the passed `PUID`/`PGID` which is ideal if its used
to run in non-root mode. That way you only need to specify the
values at runtime and pass the `-u alpine` if need be. (run `id`
in your terminal to see your own `PUID`/`PGID` values.)
Running `make` starts the service.
```
# make
docker run --rm -it \
--name docker_blynk --hostname blynk \
-e PGID=1000 -e PUID=1000 \
-p 7443:7443 -p 8080:8080 \
-p 8081:8081 -p 8082:8082 \
-p 8441:8441 -p 8442:8442 \
-p 8443:8443 -p 9443:9443 \
-v /etc/localtime:/etc/localtime:ro \
woahbase/alpine-blynk:x86_64
```
Stop the container with a timeout, (defaults to 2 seconds)
```
# make stop
docker stop -t 2 docker_blynk
```
Removes the container, (always better to stop it first and `-f`
only when needed most)
```
# make rm
docker rm -f docker_blynk
```
Restart the container with
```
# make restart
docker restart docker_blynk
```
---
#### Shell access
---
Get a shell inside a already running container,
```
# make shell
docker exec -it docker_blynk /bin/bash
```
set user or login as root,
```
# make rshell
docker exec -u root -it docker_blynk /bin/bash
```
To check logs of a running container in real time
```
# make logs
docker logs -f docker_blynk
```
---
### Development
---
If you have the repository access, you can clone and
build the image yourself for your own system, and can push after.
---
#### Setup
---
Before you clone the [repo][231], you must have [Git][101], [GNU make][102],
and [Docker][103] setup on the machine.
```
git clone https://github.com/woahbase/alpine-blynk
cd alpine-blynk
```
You can always skip installing **make** but you will have to
type the whole docker commands then instead of using the sweet
make targets.
---
#### Build
---
You need to have binfmt_misc configured in your system to be able
to build images for other architectures.
Otherwise to locally build the image for your system.
[`ARCH` defaults to `x86_64`, need to be explicit when building
for other architectures.]
```
# make ARCH=x86_64 build
# sets up binfmt if not x86_64
docker build --rm --compress --force-rm \
--no-cache=true --pull \
-f ./Dockerfile_x86_64 \
--build-arg ARCH=x86_64 \
--build-arg DOCKERSRC=alpine-openjdk8 \
--build-arg USERNAME=woahbase \
-t woahbase/alpine-blynk:x86_64 \
.
```
To check if its working..
```
# make ARCH=x86_64 test
docker run --rm -it \
--name docker_blynk --hostname blynk \
-e PGID=1000 -e PUID=1000 \
woahbase/alpine-blynk:x86_64 \
sh -ec 'sleep 5; java -version; cat /opt/blynk/version'
```
And finally, if you have push access,
```
# make ARCH=x86_64 push
docker push woahbase/alpine-blynk:x86_64
```
---
### Maintenance
---
Sources at [Github][106]. Built at [Travis-CI.org][107] (armhf / x64 builds). Images at [Docker hub][108]. Metadata at [Microbadger][109].
Maintained by [WOAHBase][204].
[101]: https://git-scm.com
[102]: https://www.gnu.org/software/make/
[103]: https://www.docker.com
[104]: https://hub.docker.com/r/multiarch/qemu-user-static/
[105]: https://github.com/multiarch/qemu-user-static/releases/
[106]: https://github.com/
[107]: https://travis-ci.org/
[108]: https://hub.docker.com/
[109]: https://microbadger.com/
[131]: https://alpinelinux.org/
[132]: https://hub.docker.com/r/woahbase/alpine-openjdk8
[133]: https://skarnet.org/software/s6/
[134]: https://github.com/just-containers/s6-overlay
[135]: https://www.blynk.cc/
[136]: http://openjdk.java.net/
[137]: https://github.com/blynkkk/blynk-server/releases
[138]: https://github.com/blynkkk/blynk-library
[201]: https://github.com/woahbase
[202]: https://travis-ci.org/woahbase/
[203]: https://hub.docker.com/u/woahbase
[204]: https://woahbase.online/
[231]: https://github.com/woahbase/alpine-blynk
[232]: https://travis-ci.org/woahbase/alpine-blynk
[233]: https://hub.docker.com/r/woahbase/alpine-blynk
[234]: https://woahbase.online/#/images/alpine-blynk
[235]: https://microbadger.com/images/woahbase/alpine-blynk:x86_64
[236]: https://microbadger.com/images/woahbase/alpine-blynk:armhf
[251]: https://travis-ci.org/woahbase/alpine-blynk.svg?branch=master
[255]: https://images.microbadger.com/badges/commit/woahbase/alpine-blynk.svg
[256]: https://images.microbadger.com/badges/version/woahbase/alpine-blynk:x86_64.svg
[257]: https://images.microbadger.com/badges/image/woahbase/alpine-blynk:x86_64.svg
[258]: https://images.microbadger.com/badges/version/woahbase/alpine-blynk:armhf.svg
[259]: https://images.microbadger.com/badges/image/woahbase/alpine-blynk:armhf.svg