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.include /usr/lib/systemd/system/docker.service

[Service]
ExecStart=
ExecStart=/usr/bin/docker -d -s=btrfs -r=false -H fd:// --dns=172.17.42.1 --dns-search=cluster.local

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

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Running Docker on two hosts, bridged with Open vSwitch

This Gist shows how to use Open vSwitch to bridge Docker containers on two hosts. It is based on this blog post http://goldmann.pl/blog/2014/01/21/connecting-docker-containers-on-multiple-hosts/.

A similar Gist using Tinc instead of Open vSwitch is available: https://gist.github.com/noteed/11031504.

Setup

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# 內容
	
	# repo 位置
		- https://github.com/facebook/react
		- https://github.com/facebook/flux

	# 官網

		- React
			* http://facebook.github.io/react/

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What

Unit files to deploy an ElasticSearch cluster on CoreOS via Fleet.

Service discovery & registration is done via etcd.

elasticsearch-discovery@.service provides a dumb discovery service by registering an elasticsearch host if it should be up. elasticsearch-intelligent-discovery@.service registers the service only if it is running.

A service & timer unit for elasticsearch curator is provided which does some housekeeping.

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$ sudo docker run -i -t futurecore/parallella-devenv /bin/bash
dev@6940b5150ffb:~$ ls
buildroot  examples
dev@6940b5150ffb:~$ cd examples/apps/hello-world/
dev@6940b5150ffb:~/examples/apps/hello-world$ ls
Debug  build.sh  run.sh  src
dev@6940b5150ffb:~/examples/apps/hello-world$ ./build.sh 
src/hello_world.c:35:19: fatal error: e-hal.h: No such file or directory
 #include <e-hal.h>
                   ^

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{
  "title": "SSH analysis",
  "services": {
    "query": {
      "list": {
        "0": {
          "query": "message:\"Invalid user\" AND sshd",
          "alias": "Failed login",
          "color": "#BF1B00",
          "id": 0,

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You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

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Docker stats collection for collectd

This script can be used to feed collectd with cpu and memory usage statistics for running docker containers using the collectd exec plugin.

This script will report the used and cached memory as well as the user and system cpu usage by inspecting the appropriate cgroup stat file for each running container.

Usage

This script is intented to be executed by collectd on a host with running docker containers. To use, simply configure the exec plugin in collectd to execute the collectd-docker.sh script. You may need to adjust the script to match your particulars, such as the mount location for cgroup.