danehans

etcd dynamic inventory script

Generarates inventory for ansible from etcd using python-etcd library.

The script assumes etcd.ini to be present alongside it. To choose a different path, set the ETCD_INI_PATH environment variable:

export ETCD_INI_PATH=/path/to/etcd.ini

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apiVersion: v1
kind: Pod
metadata:
  name: haproxy
spec:
  hostNetwork: true
  containers:
  - name: haproxy
    image: docker pull million12/haproxy:1.6.3 # From https://hub.docker.com/r/million12/haproxy/
    ports:

danehans

INFO:kolla.cmd.build:magnum-conductor:Successfully built 5ddf244ee692
INFO:kolla.cmd.build:magnum-conductor:Built
INFO:kolla.cmd.build:magnum-api: ---> beccf213151b
INFO:kolla.cmd.build:magnum-api:Removing intermediate container b0eae78455db
INFO:kolla.cmd.build:magnum-api:Step 4 : RUN chmod 755 /usr/local/bin/kolla_magnum_extend_start
INFO:kolla.cmd.build:magnum-api: ---> Running in 0974e7dbb72f
INFO:kolla.cmd.build:magnum-api: ---> e3977fd6f395
INFO:kolla.cmd.build:magnum-api:Removing intermediate container 0974e7dbb72f
INFO:kolla.cmd.build:magnum-api:Step 5 : USER magnum
INFO:kolla.cmd.build:magnum-api: ---> Running in 283b3f9a125a

danehans

TASK: [prechecks | Checking Docker version] *********************************** 
ok: [localhost]

...
TASK: [prechecks | Checking if 'MountFlags' in /lib/systemd/system/docker.service is set to 'shared'] *** 
skipping: [localhost]

TASK: [prechecks | Checking if '/run' mount flag is set to 'shared'] ********** 
failed: [localhost] => {"changed": false, "cmd": ["awk", "$5 == \"/run\" {print $7}", "/proc/self/mountinfo"], "delta": "0:00:00.003839", "end": "2016-04-18 17:39:34.331392", "failed": true, "failed_when_result": true, "rc": 0, "start": "2016-04-18 17:39:34.327553", "stdout_lines": ["-"], "warnings": []}
stdout: -

danehans

TASK: [prechecks | Checking if '/run' mount flag is set to 'shared'] ********** 
failed: [localhost] => {"changed": false, "cmd": ["awk", "$5 == \"/run\" {print $7}", "/proc/self/mountinfo"], "delta": "0:00:00.004519", "end": "2016-04-18 18:14:39.523014", "failed": true, "failed_when_result": true, "rc": 0, "start": "2016-04-18 18:14:39.518495", "stdout_lines": ["-"], "warnings": []}
stdout: -

FATAL: all hosts have already failed -- aborting

PLAY RECAP ******************************************************************** 
           to retry, use: --limit @/root/prechecks.retry

localhost                  : ok=59   changed=0    unreachable=0    failed=1   

danehans

Ultimate Go Training

Day 1 -- Primer and Introduction

Some Key Thoughts on Go

WYSIWYG. Convention over configuration. Productivity > Performance Know how much your code costs. No hidden overloads, overhead, etc.

danehans

Generate private key (.key)

# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048
    
# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)
openssl ecparam -genkey -name secp384r1 -out server.key

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# Install Vagrant on your Mac: https://www.vagrantup.com/

# Here is the version I use
$ vagrant --version
Vagrant 1.8.1

# Virtualbox (vbox) is the default Vagrant provider, so it should be installed with Vagrant.
# I use vbox v5.0.16. If you need to install vbox, follow these directions: https://www.virtualbox.org/

# Copy the Vagrant file in this gist to your laptop.

danehans

[NetDev]
Name=bond0
Kind=bond
[Bond]
Mode=802.3ad
TransmitHashPolicy=layer2
MIIMonitorSec=1
LACPTransmitRate=fast

danehans

$ systemctl cat dnsmasq
# /etc/systemd/system/bootcfg.service
[Unit]
Description=coreos-baremetal project
After=docker.service
Requires=docker.service

[Service]
Restart=always
TimeoutStartSec=0