moved kubernetes directory to vagrant-templates repo
Hari Sekhon
1 year ago
parent
ece76b25e5
commit
24e9eebe29
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kubeadm_join.sh
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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-08-29 09:19:22 +0100 (Sat, 29 Aug 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$srcdir"
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vagrant up master1 worker1
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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-08-29 09:19:22 +0100 (Sat, 29 Aug 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$srcdir"
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vagrant up master1 worker1 worker2
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@ -1,22 +0,0 @@
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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-08-29 09:19:22 +0100 (Sat, 29 Aug 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$srcdir"
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vagrant up master1 master2 master3 worker1
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@ -1,22 +0,0 @@
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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-08-29 09:19:22 +0100 (Sat, 29 Aug 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$srcdir"
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vagrant up master1 master2 master3 worker1 worker2
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@ -1,17 +0,0 @@
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#
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# Author: Hari Sekhon
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# Date: 2020-09-02 20:08:39 +0100 (Wed, 02 Sep 2020)
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#
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# vim:ts=4:sts=4:sw=4:noet
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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.PHONY: boot
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boot:
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./2nodes.sh
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exec vagrant ssh master1
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@ -1,54 +0,0 @@
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Vagrant Kubernetes Lab
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======================
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#### Quickstart
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Boots a 2 node Kubernetes cluster (1 master + 1 worker) and drops you straight in to the master shell to run `kubectl` commands
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`make`
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#### Details
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Builds a Kubernetes cluster using `kubeadm` with one of the following configurations:
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- 2 nodes - 1 master, 1 worker
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- 3 nodes - 1 master, 2 workers
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- 4 nodes - 3 masters, 1 worker
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- 5 nodes - 3 masters, 2 workers
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The hosts are intuitively named:
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```
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master1
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master2
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master3
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worker1
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worker2
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```
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You can boot whichever ones you want intuitively via
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```
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vagrant up <selection of nodes>
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```
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eg.
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```
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vagrant up master1 worker1
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```
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or use any one of the following script shortcuts to give you one of the above configurations:
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```
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./2nodes.sh
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./3nodes.sh
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./4nodes.sh
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./5nodes.sh
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```
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Tear down the lab in the usual vagrant way:
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```
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vagrant destroy
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```
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@ -1,208 +0,0 @@
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#
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# Author: Hari Sekhon
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# Date: 2020-08-14 13:16:04 +0100 (Fri, 14 Aug 2020)
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# (forked from private repo from 2013)
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# Original Date: 2013-03-18 16:38:04 +0000 (Mon, 18 Mar 2013)
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#
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# vim:ts=4:sts=4:sw=4:et:filetype=ruby
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you"re using my code you"re welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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# https://www.vagrantup.com/docs/vagrantfile
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Vagrant.configure("2") do |config|
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# https://www.vagrantup.com/docs/boxes
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#
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# to get Hashicorp"s Ubuntu 18.04 base box:
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#
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# vagrant init hashicorp/bionic64
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#
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# or try one of the Bento boxes:
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#
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# https://app.vagrantup.com/bento
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#
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#config.vm.box = "hashicorp/bionic64"
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config.vm.box = "bento/ubuntu-18.04"
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# root login doesn't work on hashicorp/bionic64 or bento/ubuntu-18.04 box with pw 'vagrant'
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#config.ssh.username = "root"
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#config.ssh.password = "vagrant"
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config.ssh.insert_key = true
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#config.ssh.private_key_path = "~/.ssh/id_rsa"
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# host_path guest_path
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config.vm.synced_folder "~/github", "/github"
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config.vm.synced_folder "../../", "/bash"
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config.ssh.forward_agent = false
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config.ssh.forward_x11 = false
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config.vm.usable_port_range = 2250..2299
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#config.vm.boot_mode = "gui"
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config.vm.provider "virtualbox" do |vb|
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vb.gui = false
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#vb.name = "default-vagrant-hostname" # overridden per VM
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vb.customize [
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"modifyvm", :id,
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"--name", "#{vb.name}",
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"--natdnsproxy1", "on",
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"--usb", "off",
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"--audio", "none"
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]
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# using the host's DNS is simple but less portable as it requires an extra step of adding the nodes to the host's /etc/hosts file, which is an easy step to miss, so just inject the hosts files in each VM instead
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#"--natdnshostresolver1", "on",
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# evaluates too early and gets 'default-vagrant-hostname'
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#config.vm.hostname = "#{vb.name}"
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end
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# generic provision for each VM
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config.vm.provision :shell, :path => "../provision.sh"
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# Colocating Etcd cluster on masters to save RAM - uncomment these if you have RAM to burn and want them on separate hosts
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# ==================================
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# config.vm.define "etcd1" do |config|
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# config.vm.network "private_network", ip: "172.16.0.21"
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# config.vm.provider "virtualbox" do |vb|
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# # can't set vb.name at shared level, as it evaluates too early and gets 'default-vagrant-hostname'
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# vb.name = "etcd1"
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# vb.cpus = 1
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# vb.memory = 1024
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# vb.customize [
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# "modifyvm", :id, "--name", "#{vb.name}"
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# ]
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# # sets the guest OS hostname and /etc/hosts (edited by provision.sh as we want external IP and not 127.0.1.1)
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# config.vm.hostname = "#{vb.name}"
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# end
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# end
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#
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# config.vm.define "etcd2" do |config|
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# config.vm.network "private_network", ip: "172.16.0.22"
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# config.vm.provider "virtualbox" do |vb|
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# # can't set vb.name at shared level, as it evaluates too early and gets 'default-vagrant-hostname'
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# vb.name = "etcd2"
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# vb.cpus = 1
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# vb.memory = 1024
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# vb.customize [
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# "modifyvm", :id, "--name", "#{vb.name}"
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# ]
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# # sets the guest OS hostname and /etc/hosts (edited by provision.sh as we want external IP and not 127.0.1.1)
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# config.vm.hostname = "#{vb.name}"
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# end
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# end
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#
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# config.vm.define "etcd3" do |config|
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# config.vm.network "private_network", ip: "172.16.0.23"
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# config.vm.provider "virtualbox" do |vb|
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# # can't set vb.name at shared level, as it evaluates too early and gets 'default-vagrant-hostname'
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# vb.name = "etcd3"
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# vb.cpus = 1
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# vb.memory = 1024
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# vb.customize [
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# "modifyvm", :id, "--name", "#{vb.name}"
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# ]
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# # sets the guest OS hostname and /etc/hosts (edited by provision.sh as we want external IP and not 127.0.1.1)
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# config.vm.hostname = "#{vb.name}"
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# end
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# end
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# ==================================
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config.vm.define "master1" do |config|
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config.vm.network "private_network", ip: "172.16.0.11"
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config.vm.provider "virtualbox" do |vb|
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# can't set vb.name at shared level, as it evaluates too early and gets 'default-vagrant-hostname'
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vb.name = "master1"
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vb.cpus = 2
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vb.memory = 4096
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vb.customize [
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"modifyvm", :id, "--name", "#{vb.name}"
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#"--cpus", 3,
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#"--memory", 7168
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]
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# sets the guest OS hostname and /etc/hosts (edited by provision.sh as we want external IP and not 127.0.1.1)
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config.vm.hostname = "#{vb.name}"
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end
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config.vm.provision :shell, :path => "provision-kube-master.sh"
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end
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config.vm.define "master2" do |config|
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config.vm.network "private_network", ip: "172.16.0.12"
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config.vm.provider "virtualbox" do |vb|
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# can't set vb.name at shared level, as it evaluates too early and gets 'default-vagrant-hostname'
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vb.name = "master2"
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vb.cpus = 2
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vb.memory = 4096
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vb.customize [
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"modifyvm", :id, "--name", "#{vb.name}"
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]
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# sets the guest OS hostname and /etc/hosts (edited by provision.sh as we want external IP and not 127.0.1.1)
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config.vm.hostname = "#{vb.name}"
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end
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#config.vm.provision :shell, :path => "provision-kube-master.sh"
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end
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config.vm.define "master3" do |config|
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config.vm.network "private_network", ip: "172.16.0.13"
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config.vm.provider "virtualbox" do |vb|
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# can't set vb.name at shared level, as it evaluates too early and gets 'default-vagrant-hostname'
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vb.name = "master3"
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vb.cpus = 1
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# Only Etcd on this one so less RAM needed
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vb.memory = 1024
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vb.customize [
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"modifyvm", :id, "--name", "#{vb.name}"
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]
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# sets the guest OS hostname and /etc/hosts (edited by provision.sh as we want external IP and not 127.0.1.1)
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config.vm.hostname = "#{vb.name}"
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end
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end
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# ==================================
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config.vm.define "worker1" do |config|
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config.vm.network "private_network", ip: "172.16.0.14"
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config.vm.provider "virtualbox" do |vb|
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vb.name = "worker1"
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vb.memory = 2048
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vb.cpus = 1
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vb.customize [
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"modifyvm", :id, "--name", "#{vb.name}"
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]
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config.vm.hostname = "#{vb.name}"
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end
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config.vm.provision :shell, :path => "provision-kube-worker.sh"
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end
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# Enable if you have lots of ram and want more workers
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config.vm.define "worker2" do |config|
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config.vm.network "private_network", ip: "172.16.0.15"
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config.vm.provider "virtualbox" do |vb|
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vb.name = "worker2"
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vb.memory = 2048
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vb.cpus = 1
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vb.customize [
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"modifyvm", :id, "--name", "#{vb.name}"
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]
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config.vm.hostname = "#{vb.name}"
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end
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config.vm.provision :shell, :path => "provision-kube-worker.sh"
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end
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# config.vm.define "worker3" do |config|
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# config.vm.network "private_network", ip: "172.16.0.16"
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# config.vm.provider "virtualbox" do |vb|
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# vb.name = "worker3"
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# vb.memory = 2048
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# vb.cpus = 1
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# vb.customize [
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# "modifyvm", :id, "--name", "#{vb.name}"
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# ]
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# config.vm.hostname = "#{vb.name}"
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# end
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# config.vm.provision :shell, :path => "provision-kube-worker.sh"
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# end
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end
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File diff suppressed because it is too large
Load Diff
@ -1,21 +0,0 @@
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#!/usr/bin/env bash
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# vim:ts=2:sts=2:sw=2:et
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#
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# Author: Hari Sekhon
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# Date: 2020-08-14 13:16:04 +0100 (Fri, 14 Aug 2020)
|
||||
#
|
||||
# https://github.com/HariSekhon/DevOps-Bash-tools
|
||||
#
|
||||
# License: see accompanying Hari Sekhon LICENSE file
|
||||
#
|
||||
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
||||
#
|
||||
# https://www.linkedin.com/in/HariSekhon
|
||||
#
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apiVersion: kubeadm.k8s.io/v1beta2
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kind: ClusterConfiguration
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kubernetesVersion: 1.18.1 # Use the word stable for newest version
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controlPlaneEndpoint: "master1:6443" # Use the node alias not the IP so cert matches from LB
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networking:
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podSubnet: 192.168.0.0/16 # Match the IP range from the Calico config file
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@ -1,59 +0,0 @@
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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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||||
#
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||||
# Author: Hari Sekhon
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||||
# Date: 2020-08-14 13:16:04 +0100 (Fri, 14 Aug 2020)
|
||||
#
|
||||
# https://github.com/HariSekhon/DevOps-Bash-tools
|
||||
#
|
||||
# License: see accompanying Hari Sekhon LICENSE file
|
||||
#
|
||||
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
||||
#
|
||||
# https://www.linkedin.com/in/HariSekhon
|
||||
#
|
||||
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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bash_tools="/bash"
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# shellcheck disable=SC1090
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source "$bash_tools/lib/utils.sh"
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section "Running Vagrant Shell Provisioner Script - Kubernetes Common"
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pushd /vagrant
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"$bash_tools/install_packages_if_absent.sh" docker.io
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systemctl enable docker.service
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systemctl start docker.service
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echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | "$bash_tools/bin/grep_or_append.sh" /etc/apt/sources.list.d/kubernetes.list
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curl -sS https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
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if ! dpkg -s kubeadm kubelet kubectl &>/dev/null; then
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/bash/install_packages_if_absent.sh \
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kubeadm=1.18.1-00 \
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kubelet=1.18.1-00 \
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kubectl=1.18.1-00
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apt-mark hold \
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kubelet \
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kubeadm \
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kubectl
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fi
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#source <(kubectl completion bash)
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timestamp "adding bash completion for kubectl:"
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echo "source <(kubectl completion bash)" | "$bash_tools/bin/grep_or_append.sh" ~/.bashrc
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||||
echo >&2
|
||||
|
||||
if ! [ -d /templates ] &&
|
||||
[ -d /github/perl-tools/templates ]; then
|
||||
ln -sv -- /github/perl-tools/templates /
|
||||
fi
|
||||
|
||||
popd
|
||||
@ -1,127 +0,0 @@
|
||||
#!/usr/bin/env bash
|
||||
# vim:ts=4:sts=4:sw=4:et
|
||||
#
|
||||
# Author: Hari Sekhon
|
||||
# Date: 2020-08-14 13:16:04 +0100 (Fri, 14 Aug 2020)
|
||||
#
|
||||
# https://github.com/HariSekhon/DevOps-Bash-tools
|
||||
#
|
||||
# License: see accompanying Hari Sekhon LICENSE file
|
||||
#
|
||||
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
||||
#
|
||||
# https://www.linkedin.com/in/HariSekhon
|
||||
#
|
||||
|
||||
set -euo pipefail
|
||||
[ -n "${DEBUG:-}" ] && set -x
|
||||
|
||||
# has to be before brace to set up logging path and logfile name
|
||||
mkdir -pv /vagrant/logs
|
||||
name="${0##*/}"
|
||||
log="/vagrant/logs/${name%.sh}.log"
|
||||
|
||||
{
|
||||
|
||||
bash_tools="/bash"
|
||||
|
||||
# shellcheck source=provision-kube-common.sh
|
||||
. "/vagrant/provision-kube-common.sh"
|
||||
|
||||
section "Running Vagrant Shell Provisioner Script - Kubernetes Master"
|
||||
|
||||
kubeadm_join="/vagrant/kubeadm_join.sh"
|
||||
|
||||
pushd /vagrant
|
||||
|
||||
flannel_yml=kube-flannel.yml
|
||||
calico_yaml=calico.yaml
|
||||
weavenet_yaml=weavenet.yaml
|
||||
|
||||
# XXX: one-line CNI deployment change right here :-)
|
||||
selected_cni="$calico_yaml"
|
||||
|
||||
# should already be in the vagrant dir
|
||||
if [ "$selected_cni" = "$flannel_yml" ]; then
|
||||
if ! [ -s "$flannel_yml" ]; then
|
||||
timestamp "Fetching $flannel_yml:"
|
||||
wget -O "$flannel_yml" https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
|
||||
fi
|
||||
elif [ "$selected_cni" = "$calico_yaml" ]; then
|
||||
if ! [ -s "$calico_yaml" ]; then
|
||||
timestamp "Fetching $calico_yaml:"
|
||||
wget -O "$calico_yaml" https://docs.projectcalico.org/manifests/calico.yaml
|
||||
fi
|
||||
elif [ "$selected_cni" = "$weavenet_yaml" ]; then
|
||||
if ! [ -s "$weavenet_yaml" ]; then
|
||||
timestamp "Fetching $weavenet_yaml:"
|
||||
#wget -O "weave.sh https://git.io/weave
|
||||
wget -O "$weavenet_yaml" "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
|
||||
fi
|
||||
else
|
||||
echo "Selected CNI '$selected_cni' doesn't match one of: $flannel_yml, $calico_yaml, $weavenet_yaml"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo >&2
|
||||
|
||||
if ! netstat -lnt | grep -q :10248; then
|
||||
timestamp "Bootstrapping kubernetes master:"
|
||||
echo >&2
|
||||
# remove stale old generated join script so worker(s) awaits new one
|
||||
rm -fv -- "$kubeadm_join"
|
||||
echo >&2
|
||||
# kubeadm-config.yml is in vagrant dir mounted at /vagrant
|
||||
kubeadm init --node-name "$(hostname -f)" --config=kubeadm-config.yaml --upload-certs | tee /vagrant/logs/kubeadm-init.out # save output for review
|
||||
echo >&2
|
||||
fi
|
||||
|
||||
kubeadm token list
|
||||
|
||||
echo >&2
|
||||
|
||||
timestamp "Configuring kubectl:"
|
||||
mkdir -pv ~/.kube /home/vagrant/.kube /vagrant/.kube
|
||||
for kube_config in ~/.kube/config /home/vagrant/.kube/config; do
|
||||
if ! [ -f "$kube_config" ]; then
|
||||
cp -vf -- /etc/kubernetes/admin.conf "$kube_config"
|
||||
fi
|
||||
done
|
||||
chown -v "$(id -u):$(id -g)" ~/.kube/config
|
||||
chown -v vagrant:vagrant /home/vagrant/.kube/config
|
||||
cp -vf -- ~/.kube/config /vagrant/.kube/config
|
||||
echo >&2
|
||||
|
||||
timestamp "Applying CNI $selected_cni:"
|
||||
kubectl apply -f "$selected_cni"
|
||||
|
||||
echo >&2
|
||||
|
||||
timestamp "Kubernetes Node Taints:"
|
||||
kubectl describe nodes | grep -i -e '^Name:' -e '^Taints:'
|
||||
|
||||
echo >&2
|
||||
|
||||
timestamp "untainting master node for pod scheduling"
|
||||
kubectl taint nodes --all node-role.kubernetes.io/master- || :
|
||||
|
||||
echo >&2
|
||||
|
||||
kubectl describe nodes | grep -i -e '^Name:' -e '^Taints:'
|
||||
|
||||
echo >&2
|
||||
|
||||
kubectl taint nodes --all node.kubernetes.io/not-ready- || :
|
||||
|
||||
echo >&2
|
||||
|
||||
timestamp "Kubernetes Nodes:"
|
||||
kubectl get nodes
|
||||
|
||||
echo >&2
|
||||
|
||||
timestamp "(re)generating $kubeadm_join for workers to use"
|
||||
"$bash_tools/kubeadm_join_cmd.sh" > "$kubeadm_join"
|
||||
chmod +x "$kubeadm_join"
|
||||
|
||||
} 2>&1 | tee -a "$log"
|
||||
@ -1,78 +0,0 @@
|
||||
#!/usr/bin/env bash
|
||||
# vim:ts=4:sts=4:sw=4:et
|
||||
#
|
||||
# Author: Hari Sekhon
|
||||
# Date: 2020-08-14 13:16:04 +0100 (Fri, 14 Aug 2020)
|
||||
#
|
||||
# https://github.com/HariSekhon/DevOps-Bash-tools
|
||||
#
|
||||
# License: see accompanying Hari Sekhon LICENSE file
|
||||
#
|
||||
# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
|
||||
#
|
||||
# https://www.linkedin.com/in/HariSekhon
|
||||
#
|
||||
|
||||
set -euo pipefail
|
||||
[ -n "${DEBUG:-}" ] && set -x
|
||||
|
||||
# has to be before brace to set up logging path and logfile name
|
||||
mkdir -pv /vagrant/logs
|
||||
name="${0##*/}"
|
||||
log="/vagrant/logs/${name%.sh}.log"
|
||||
|
||||
{
|
||||
|
||||
# shellcheck source=provision-kube-common.sh
|
||||
. "/vagrant/provision-kube-common.sh"
|
||||
|
||||
section "Running Vagrant Shell Provisioner Script - Kubernetes Worker"
|
||||
|
||||
echo >&2
|
||||
|
||||
pushd /vagrant
|
||||
|
||||
kubeadm_join="/vagrant/kubeadm_join.sh"
|
||||
|
||||
if ! netstat -lnt | grep -q :10248; then
|
||||
timestamp "Bootstrapping kubernetes worker:"
|
||||
echo >&2
|
||||
|
||||
# happens after master anyway
|
||||
#timestamp "waiting for 15 secs to give master time to provision"
|
||||
#sleep 15
|
||||
|
||||
timestamp "Waiting for master to bootstrap and generate kubectl join command at $kubeadm_join"
|
||||
SECONDS=0
|
||||
while ! [ -f "$kubeadm_join" ]; do
|
||||
if [ $SECONDS -gt 600 ]; then
|
||||
timestamp "ERROR: max wait time for $kubeadm_join to appear exceeded, aborting worker node join. Check provisioner run on master has generated $kubeadm_join or re-run provisioner"
|
||||
exit 1
|
||||
fi
|
||||
sleep 1
|
||||
done
|
||||
echo >&2
|
||||
|
||||
# doesn't error out if already joined
|
||||
timestamp "Running $kubeadm_join"
|
||||
chmod +x "$kubeadm_join"
|
||||
"$kubeadm_join"
|
||||
|
||||
echo >&2
|
||||
fi
|
||||
|
||||
timestamp "Configuring kubectl:"
|
||||
mkdir -pv ~/.kube /home/vagrant/.kube
|
||||
for kube_config in ~/.kube/config /home/vagrant/.kube/config; do
|
||||
if ! [ -f "$kube_config" ]; then
|
||||
cp -vf -- /vagrant/.kube/config "$kube_config"
|
||||
fi
|
||||
done
|
||||
chown -v "$(id -u):$(id -g)" ~/.kube/config
|
||||
chown -v vagrant:vagrant /home/vagrant/.kube/config
|
||||
echo >&2
|
||||
|
||||
timestamp "Kubernetes Nodes:"
|
||||
kubectl get nodes
|
||||
|
||||
} 2>&1 | tee -a "$log"
|
||||
Loading…
Reference in New Issue