├── .gitignore ├── LICENSE ├── README.md ├── Vagrantfile ├── config.rb ├── scripts ├── build-images ├── etcd-discovery ├── k8s-deps └── push-images └── src ├── dockerimages ├── 11-flannel ├── 13-kubernetes └── scripts │ ├── flannel-conf.sh │ └── k8s-docker.sh ├── node-ip.sh ├── start-etcd.sh ├── start-k8s-master.sh ├── start-k8s-minion.sh ├── start-node.sh └── start.sh /.gitignore: -------------------------------------------------------------------------------- 1 | *.box 2 | .vagrant 3 | /src/dockerimages/tmp 4 | /.etcd-discovery-url 5 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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However, in accepting such obligations, You may act only 171 | on Your own behalf and on Your sole responsibility, not on behalf 172 | of any other Contributor, and only if You agree to indemnify, 173 | defend, and hold each Contributor harmless for any liability 174 | incurred by, or claims asserted against, such Contributor by reason 175 | of your accepting any such warranty or additional liability. 176 | 177 | END OF TERMS AND CONDITIONS 178 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Kubernetes on RancherOS with Vagrant 2 | 3 | Run a local Kubernetes cluster on RancherOS using Vagrant/VirtualBox. 4 | 5 | ## IMPORTANT! 6 | 7 | **Every time** you recreate your cluster, **run this:** 8 | 9 | ./scripts/etcd-discovery 10 | 11 | It generates `.etcd-discovery-url` file that is provisioned to your cluster nodes. 12 | 13 | WARNING: In case you try to reuse this file (e.g. forgot to run `./scripts/etcd-discovery` 14 | before `vagrant destroy -f && vagrant up` or even `vagrant reload`), your `etcd` nodes will try to become peers in an already dead cluster. 15 | 16 | 17 | ## Getting started 18 | 1.) Install dependencies 19 | 20 | * Virtualbox (Tested with 4.3.24) 21 | * Vagrant (Tested with 1.7.2) 22 | * Kubernetes `kubectl` (Tested with 0.12.1) 23 | 24 | You might also want to run a local Docker registry mirror on your host machine: 25 | 26 | docker run -d -p 5000:5000 -e STANDALONE=false \ 27 | -e MIRROR_SOURCE=https://registry-1.docker.io \ 28 | -e MIRROR_SOURCE_INDEX=https://index.docker.io \ 29 | registry 30 | 31 | 2.) Clone this project 32 | 33 | ``` 34 | git clone https://github.com/imikushin/rancheros-k8s-vagrant.git 35 | cd rancheros-k8s-vagrant 36 | ``` 37 | 38 | 3.) Up and Running 39 | 40 | ``` 41 | ./scripts/etcd-discovery; vagrant up 42 | ``` 43 | 44 | Watch for `==> node-01: MASTER_IP=...` message in the log. `MASTER_IP` value is your Kubernetes master node address. 45 | 46 | ``` 47 | vagrant ssh node-01 48 | vagrant ssh node-02 49 | vagrant ssh node-03 50 | ``` 51 | 52 | Kubernetes launch script log is written to `/var/log/start.log`. You can watch it with 53 | 54 | tail -f /var/log/start.log 55 | 56 | Set `KUBERNETES_MASTER=http://${MASTER_IP}:8080` environment variable on your host machine. 57 | Use Kubernetes `kubectl` utility (on your host) as usual to manage your Kubernetes cluster. 58 | 59 | 60 | ## Upgrading RancherOS and Kubernetes Versions 61 | 62 | To upgrade the Vagrant box and dependencies, refresh this repository from master. 63 | 64 | 65 | 66 | ### Customizing and configuring 67 | 68 | 69 | To get a feel for how RancherOS works under the hood checkout the 70 | [RancherOS Repo](https://github.com/rancherio/os) for details. 71 | 72 | # License 73 | Copyright (c) 2015 [Ivan Mikushin](https://github.com/imikushin) 74 | Copyright (c) 2014-2015 [Rancher Labs, Inc.](http://rancher.com) 75 | 76 | Licensed under the Apache License, Version 2.0 (the "License"); 77 | you may not use this file except in compliance with the License. 78 | You may obtain a copy of the License at 79 | 80 | [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0) 81 | 82 | Unless required by applicable law or agreed to in writing, software 83 | distributed under the License is distributed on an "AS IS" BASIS, 84 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 85 | See the License for the specific language governing permissions and 86 | limitations under the License. 87 | 88 | -------------------------------------------------------------------------------- /Vagrantfile: -------------------------------------------------------------------------------- 1 | # -*- mode: ruby -*- 2 | # vi: set ft=ruby : 3 | 4 | 5 | CONFIG = File.join(File.dirname(__FILE__), "config.rb") 6 | 7 | # Defaults for config options defined in config.rb 8 | $num_minions = 1 9 | $enable_serial_logging = (ENV['SERIAL_LOGGING'].to_s.downcase == 'true') 10 | $vm_gui = (ENV['GUI'].to_s.downcase == 'true') 11 | $vm_memory = ENV['NODE_MEM'] || 1024 12 | $vm_cpus = ENV['NODE_CPUS'] || 1 13 | 14 | if File.exist?(CONFIG) 15 | require CONFIG 16 | end 17 | 18 | 19 | # All Vagrant configuration is done below. The "2" in Vagrant.configure 20 | # configures the configuration version (we support older styles for 21 | # backwards compatibility). Please don't change it unless you know what 22 | # you're doing. 23 | Vagrant.configure(2) do |config| 24 | config.vm.box = "imikushin/rancheros-cluster" 25 | config.vm.box_version = "0.1.2" 26 | config.ssh.username = "rancher" 27 | 28 | config.vm.provider "virtualbox" do |vb| 29 | vb.check_guest_additions = false 30 | vb.functional_vboxsf = false 31 | end 32 | 33 | config.vm.synced_folder ".", "/vagrant", disabled: true 34 | 35 | (1..($num_minions + 1)).each do |i| 36 | hostname = "node-%02d" % i 37 | 38 | config.vm.define vmName = hostname do |node| 39 | ## Setting hostname not supported yet 40 | # node.vm.hostname = vmName 41 | 42 | node.vm.provider "virtualbox" do |vb| 43 | vb.gui = $vm_gui 44 | vb.memory = $vm_memory 45 | vb.cpus = $vm_cpus 46 | end 47 | 48 | ## Configure network not supported yet. using `auto_config: false` 49 | node.vm.network :private_network, type: :dhcp, auto_config: false 50 | 51 | node.vm.provision "file", source: ".etcd-discovery-url", destination: "/home/rancher/.etcd-discovery-url", run: "always" 52 | 53 | node.vm.provision "file", source: "src/node-ip.sh", destination: "/home/rancher/node-ip.sh" 54 | if i == 1 55 | node.vm.provision "shell", inline: "touch /home/rancher/.k8s-master" 56 | node.vm.provision "shell", inline: "echo MASTER_IP=`/home/rancher/node-ip.sh`", run: "always" 57 | else 58 | node.vm.provision "shell", inline: "echo MINION_IP=`/home/rancher/node-ip.sh`", run: "always" 59 | end 60 | 61 | node.vm.provision "file", source: "src/start-etcd.sh", destination: "/home/rancher/start-etcd.sh" 62 | node.vm.provision "file", source: "src/start-k8s-master.sh", destination: "/home/rancher/start-k8s-master.sh" 63 | node.vm.provision "file", source: "src/start-k8s-minion.sh", destination: "/home/rancher/start-k8s-minion.sh" 64 | 65 | node.vm.provision "file", source: "src/start-node.sh", destination: "/home/rancher/start-node.sh" 66 | node.vm.provision "file", source: "src/start.sh", destination: "/home/rancher/start.sh" 67 | node.vm.provision "shell", inline: "/home/rancher/start.sh", run: "always" 68 | 69 | ## Shared folders not supported yet 70 | node.vm.synced_folder ".", "/vagrant", disabled: true 71 | end 72 | end 73 | end 74 | -------------------------------------------------------------------------------- /config.rb: -------------------------------------------------------------------------------- 1 | $num_minions = 2 2 | -------------------------------------------------------------------------------- /scripts/build-images: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | PREFIX=imikushin 5 | 6 | cd $(dirname $0)/.. 7 | 8 | ./scripts/k8s-deps 9 | 10 | for i in src/dockerimages/[0-9]*; do 11 | tag=`echo ${i} | awk 'sub(/^.+\/[0-9]+-/, "")'` 12 | echo Building ${tag} 13 | docker build -t ${PREFIX}/${tag} -f ${i} . 14 | done 15 | -------------------------------------------------------------------------------- /scripts/etcd-discovery: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | cd $(dirname $0)/.. 5 | 6 | curl -s https://discovery.etcd.io/new?size=1 > ./.etcd-discovery-url 7 | -------------------------------------------------------------------------------- /scripts/k8s-deps: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | etcd_v="v2.0.10" 5 | flannel_v="0.4.0" 6 | k8s_v="v0.15.0" 7 | 8 | cd $(dirname $0)/.. 9 | 10 | tmp_dir=src/dockerimages/tmp 11 | 12 | mkdir -p ${tmp_dir} 13 | 14 | etcd_dist="etcd-${etcd_v}-linux-amd64" 15 | if [[ ! -f ./${tmp_dir}/etcd/etcdctl ]]; then 16 | cd ${tmp_dir} 17 | curl -L https://github.com/coreos/etcd/releases/download/${etcd_v}/${etcd_dist}.tar.gz -o ${etcd_dist}.tar.gz 18 | tar -xzf ${etcd_dist}.tar.gz 19 | mv ${etcd_dist} etcd 20 | rm ${etcd_dist}.tar.gz 21 | cd ../../.. 22 | fi 23 | flannel_dist="flannel-${flannel_v}-linux-amd64" 24 | if [[ ! -f ./${tmp_dir}/flannel/flannel ]]; then 25 | cd ${tmp_dir} 26 | curl -L https://github.com/coreos/flannel/releases/download/v${flannel_v}/${flannel_dist}.tar.gz -o ${flannel_dist}.tar.gz 27 | tar -xzf ${flannel_dist}.tar.gz 28 | mv flannel-${flannel_v} flannel 29 | mv flannel/flanneld flannel/flannel 30 | rm ${flannel_dist}.tar.gz 31 | cd ../../.. 32 | fi 33 | if [[ ! -f ./${tmp_dir}/k8s/kubelet ]]; then 34 | mkdir -p ${tmp_dir}/k8s 35 | wget -N -P ${tmp_dir}/k8s \ 36 | https://storage.googleapis.com/kubernetes-release/release/${k8s_v}/bin/linux/amd64/kube-apiserver 37 | wget -N -P ${tmp_dir}/k8s \ 38 | https://storage.googleapis.com/kubernetes-release/release/${k8s_v}/bin/linux/amd64/kube-controller-manager 39 | wget -N -P ${tmp_dir}/k8s \ 40 | https://storage.googleapis.com/kubernetes-release/release/${k8s_v}/bin/linux/amd64/kube-scheduler 41 | wget -N -P ${tmp_dir}/k8s \ 42 | https://storage.googleapis.com/kubernetes-release/release/${k8s_v}/bin/linux/amd64/kube-proxy 43 | wget -N -P ${tmp_dir}/k8s \ 44 | https://storage.googleapis.com/kubernetes-release/release/${k8s_v}/bin/linux/amd64/kubelet 45 | chmod +x ${tmp_dir}/k8s/kube-apiserver 46 | chmod +x ${tmp_dir}/k8s/kube-controller-manager 47 | chmod +x ${tmp_dir}/k8s/kube-scheduler 48 | chmod +x ${tmp_dir}/k8s/kube-proxy 49 | chmod +x ${tmp_dir}/k8s/kubelet 50 | fi 51 | -------------------------------------------------------------------------------- /scripts/push-images: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | PREFIX=imikushin 5 | 6 | cd $(dirname $0)/.. 7 | 8 | for i in src/dockerimages/[0-9]*; do 9 | tag=`echo ${i} | awk 'sub(/^.+\/[0-9]+-/, "")'` 10 | docker push ${PREFIX}/${tag} 11 | done 12 | -------------------------------------------------------------------------------- /src/dockerimages/11-flannel: -------------------------------------------------------------------------------- 1 | FROM debian:7.8 2 | RUN apt-get update && apt-get install -y curl 3 | COPY src/dockerimages/tmp/etcd/etcd \ 4 | src/dockerimages/tmp/etcd/etcdctl \ 5 | src/dockerimages/tmp/flannel/flannel \ 6 | src/dockerimages/scripts/flannel-conf.sh / 7 | -------------------------------------------------------------------------------- /src/dockerimages/13-kubernetes: -------------------------------------------------------------------------------- 1 | FROM debian:7.8 2 | RUN apt-get update && apt-get install -y kmod bridge-utils iptables curl 3 | COPY src/dockerimages/tmp/k8s/* \ 4 | src/dockerimages/scripts/k8s-docker.sh / 5 | -------------------------------------------------------------------------------- /src/dockerimages/scripts/flannel-conf.sh: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | set -x -e 3 | 4 | until /etcdctl cluster-health; do 5 | sleep 2 6 | done 7 | 8 | FLANNEL_NETWORK=${FLANNEL_NETWORK:?"FLANNEL_NETWORK not set"} 9 | 10 | /etcdctl set /coreos.com/network/config "{\"Network\":\"${FLANNEL_NETWORK}\",\"Backend\":{\"Type\":\"vxlan\"}}" 11 | -------------------------------------------------------------------------------- /src/dockerimages/scripts/k8s-docker.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | . /var/run/flannel/subnet.env 5 | 6 | CGROUPS="perf_event net_cls freezer devices blkio memory cpuacct cpu cpuset" 7 | 8 | mkdir -p /sys/fs/cgroup 9 | mount -t tmpfs none /sys/fs/cgroup 10 | 11 | for i in $CGROUPS; do 12 | mkdir -p /sys/fs/cgroup/$i 13 | mount -t cgroup -o $i none /sys/fs/cgroup/$i 14 | done 15 | 16 | if ! lsmod | grep -q br_netfilter; then 17 | modprobe br_netfilter 2>/dev/null || true 18 | fi 19 | 20 | rm -f /var/run/docker.pid 21 | 22 | ip link set down dev docker0 23 | brctl delbr docker0 24 | 25 | #exec >/var/log/userdocker.log 2>&1 26 | exec docker -d -s overlay -G docker --bip=${FLANNEL_SUBNET} --mtu=${FLANNEL_MTU} 27 | -------------------------------------------------------------------------------- /src/node-ip.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -e 3 | 4 | echo `ip -f inet -o addr show dev eth1 | awk 'gsub(/\/[0-9]+/,""){print $4}'` 5 | -------------------------------------------------------------------------------- /src/start-etcd.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | cd $(dirname $0) 5 | 6 | NODE_IP=${NODE_IP:?"NODE_IP not set"} 7 | DISCOVERY_URL=`cat .etcd-discovery-url` 8 | 9 | system-docker rm etcd && : 10 | system-docker run --name=etcd -d --restart=always \ 11 | --net=host \ 12 | imikushin/flannel \ 13 | /etcd --initial-advertise-peer-urls http://${NODE_IP}:2380 \ 14 | --listen-peer-urls http://${NODE_IP}:2380 \ 15 | --listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001 \ 16 | --advertise-client-urls http://${NODE_IP}:2379,http://${NODE_IP}:4001 \ 17 | --discovery ${DISCOVERY_URL} 18 | -------------------------------------------------------------------------------- /src/start-k8s-master.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | NODE_IP=${NODE_IP:?"NODE_IP not set"} 5 | MASTER_PORT=8080 6 | MASTER_ENDPOINT="${NODE_IP}:${MASTER_PORT}" 7 | system-docker run --rm --net=host imikushin/flannel /etcdctl set /rancher.io/k8s/master ${MASTER_ENDPOINT} 8 | 9 | system-docker rm kube-apiserver && : 10 | system-docker run --name=kube-apiserver -d --restart=always \ 11 | --net=host \ 12 | --volumes-from=system-volumes \ 13 | imikushin/kubernetes \ 14 | /kube-apiserver --address=0.0.0.0 --port=${MASTER_PORT} --portal_net=10.100.0.0/16 \ 15 | --etcd_servers=http://127.0.0.1:2379 --public_address_override=${NODE_IP} --v=2 --logtostderr=true 16 | 17 | system-docker rm kube-proxy && : 18 | system-docker run --name=kube-proxy -d --restart=always --privileged \ 19 | --net=host \ 20 | --volumes-from=system-volumes \ 21 | imikushin/kubernetes /kube-proxy --master=http://127.0.0.1:${MASTER_PORT} --v=2 --logtostderr=true 22 | 23 | system-docker rm kube-controller-manager && : 24 | system-docker run --name=kube-controller-manager -d --restart=always \ 25 | --net=host \ 26 | --volumes-from=system-volumes \ 27 | imikushin/kubernetes \ 28 | /kube-controller-manager --master=http://127.0.0.1:${MASTER_PORT} --v=2 --logtostderr=true 29 | 30 | system-docker rm kube-scheduler && : 31 | system-docker run --name=kube-scheduler -d --restart=always \ 32 | --net=host \ 33 | --volumes-from=system-volumes \ 34 | imikushin/kubernetes \ 35 | /kube-scheduler --master=http://127.0.0.1:${MASTER_PORT} --v=2 --logtostderr=true 36 | -------------------------------------------------------------------------------- /src/start-k8s-minion.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | NODE_IP=${NODE_IP:?"NODE_IP not set"} 5 | MASTER_ENDPOINT=`system-docker run --rm --net=host imikushin/flannel /etcdctl get /rancher.io/k8s/master` 6 | 7 | system-docker rm kube-proxy && : 8 | system-docker run --name=kube-proxy -d --restart=always --privileged \ 9 | --net=host \ 10 | --volumes-from=system-volumes \ 11 | imikushin/kubernetes /kube-proxy --master=http://${MASTER_ENDPOINT} --v=2 --logtostderr=true 12 | 13 | system-docker rm kubelet && : 14 | system-docker run --name=kubelet -d --restart=always --privileged \ 15 | --ipc=host --pid=host --net=host \ 16 | --volumes-from=command-volumes --volumes-from=system-volumes \ 17 | imikushin/kubernetes \ 18 | /kubelet --address=0.0.0.0 --port=10250 --hostname_override=${NODE_IP} \ 19 | --api_servers=${MASTER_ENDPOINT} --v=2 --logtostderr=true 20 | 21 | system-docker run --rm \ 22 | --net=host \ 23 | imikushin/kubernetes \ 24 | curl -si -X POST http://${MASTER_ENDPOINT}/api/v1beta2/minions -H 'content-type: application/json' \ 25 | -d "{\"kind\":\"Minion\",\"apiVersion\":\"v1beta2\",\"id\":\"${NODE_IP}\",\"hostIP\":\"${NODE_IP}\"}" 26 | 27 | echo Minion ${NODE_IP} up! 28 | -------------------------------------------------------------------------------- /src/start-node.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | cd $(dirname $0) 5 | 6 | export NODE_IP=`./node-ip.sh` 7 | 8 | ./start-etcd.sh 9 | 10 | system-docker rm flannel-conf && : 11 | system-docker run --name=flannel-conf --rm --net=host \ 12 | -e FLANNEL_NETWORK="10.244.0.0/16" \ 13 | imikushin/flannel /flannel-conf.sh 14 | 15 | system-docker rm flannel && : 16 | system-docker run --name=flannel -d --restart=always --privileged \ 17 | --net=host \ 18 | --volumes-from=system-volumes \ 19 | imikushin/flannel /flannel --iface=eth1 20 | 21 | system-docker stop userdocker && system-docker rm userdocker && : 22 | 23 | system-docker rm k8s-docker && : 24 | system-docker run --name=k8s-docker -d --restart=always --privileged \ 25 | --ipc=host --pid=host --net=host \ 26 | --volumes-from=command-volumes --volumes-from=user-volumes --volumes-from=system-volumes \ 27 | -v=/var/lib/rancher/state/docker:/var/lib/docker \ 28 | imikushin/kubernetes /k8s-docker.sh 29 | 30 | if [ -f ./.k8s-master ]; then 31 | ./start-k8s-master.sh 32 | else 33 | ./start-k8s-minion.sh 34 | fi 35 | -------------------------------------------------------------------------------- /src/start.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -x -e 3 | 4 | nohup /home/rancher/start-node.sh /var/log/start.log 2>&1 & 5 | --------------------------------------------------------------------------------