LXD MAAS

# kubernetes rancher deployment

These are my personal instructions for getting a Juju deployment of Charmed Kubernetes up and running, managed by Rancher 2.x.

## Get MAAS working.
Instructions here.

## Get Controller Prepared
1. Fresh instance of Ubuntu 18.04
2. Run ssh-keygen \ cat .ssh/id_rsa.pub
3. Import ssh key into MAAS

## Get nodes prepared
1. Check to make sure storage is setup properly (RAID in MAAS)
2. Create bridges on all nodes using static IP addresses (192.168.1.10, 192.168.1.11) and turn on STP / 0s Delay
3. Deploy machines
4. Run: sudo swapoff -a
5. Run: curl https://releases.rancher.com/install-docker/18.09.2.sh | sh
6. 

### Modify Juju Constraints Manually:
* juju bootstrap --constraints "mem=3.5G cores=2 root-disk=16G" [controller_name_here]
* juju config kubernetes-worker allow-privileged=true
* juju config kubernetes-master allow-privileged=true


config:
  boot.autostart: "true"
  limits.cpu: "4"
  limits.memory: 4000MB
  linux.kernel_modules: bridge,br_netfilter,ip_tables,ip6_tables,ip_vs,netlink_diag,nf_nat,overlay,xt_conntrack
  raw.lxc: |-
    lxc.apparmor.profile = unconfined
    lxc.cgroup.devices.allow = a
    lxc.mount.auto=proc:rw sys:rw cgroup:rw
    lxc.cap.drop =
  security.nesting: "true"
  security.privileged: "true"
description: Default LXD profile
devices:
  aadisable:
    path: /sys/module/nf_conntrack/parameters/hashsize
    source: /sys/module/nf_conntrack/parameters/hashsize
    type: disk
  aadisable1:
    path: /sys/module/apparmor/parameters/enabled
    source: /dev/null
    type: disk
  eth0:
    name: eth0
    nictype: bridged
    parent: lxdbr0
    type: nic
  root:
    path: /
    pool: local
    size: 30GB
    type: disk
name: default
used_by: []



(more modules: ip_vs_rr,ip_vs_wrr,ip_vs_sh,nf_conntrack_ipv4)