gosharplite/CoreUpdate.md

## README.md

      
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              README.md
            
          
    Cloud Native


## administer-a-cluster.png

      
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              administer-a-cluster.png
            
          
## calico-cni.md

      
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              calico-cni.md
            
          
    Calico-CNI

https://kubernetes.io/docs/concepts/cluster-administration/network-plugins/

http://docs.projectcalico.org/v2.3/getting-started/kubernetes/

https://github.com/projectcalico/calico

https://github.com/projectcalico/calicoctl/releases

https://github.com/projectcalico/calicoctl/releases/tag/v0.23.1

https://github.com/projectcalico/cni-plugin/releases

https://github.com/projectcalico/cni-plugin/releases/tag/v1.4.4

https://github.com/containernetworking/cni/releases

https://github.com/containernetworking/cni/releases/tag/v0.3.0

https://github.com/containernetworking/cni/blob/master/SPEC.md#network-configuration

http://docs.projectcalico.org/v2.3/getting-started/kubernetes/installation/

projectcalico/calico#442 (comment)

projectcalico/calico#443

http://docs.projectcalico.org/v2.3/releases/

http://docs.projectcalico.org/v2.3/getting-started/kubernetes/installation/integration


## CoreUpdate.md

      
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              CoreUpdate.md
            
          
    CoreUpdate

Useful commands

/etc/coreos/update.conf

GROUP=stable
SERVER=http://matchbox.foo:8080/assets/coreos_update/1353.8.0/

$ sudo systemctl status update_engine
$ sudo systemctl unmask update_engine
$ sudo systemctl start update_engine
$ update_engine_client -update

# Need to update twice for A and B regions.

Links

https://gist.github.com/gosharplite/e9ede9f997769bce56f2baa63285323a

https://github.com/coreroller/coreroller#existing-machines

https://coreos.com/products/coreupdate/docs/latest/configure-machines.html

https://groups.google.com/forum/#!topic/coreos-user/FCMR_viblWY

https://coreos.com/os/docs/latest/manual-rollbacks.html


## etcd3.md

      
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              etcd3.md
            
          
    etcd2 to etcd3

Useful commands

Backing up the datastore
https://coreos.com/etcd/docs/latest/v2/admin_guide.html

# etcdctl backup --data-dir /var/lib/etcd2/ --backup-dir ./170511_1727

# This is for bug of 1122.2.0
scp -r
chown -R

etcd disaster recovery on CoreOS Container Linux
https://coreos.com/etcd/docs/latest/etcd-live-cluster-reconfiguration.html

$ sudo etcdctl backup --data-dir /var/lib/etcd2 --backup-dir /var/lib/etcd2_backup

/run/systemd/system/etcd2.service.d/98-force-new-cluster.conf drop-in file with the following contents:

[Service]
Environment="ETCD_FORCE_NEW_CLUSTER=true"

# Be careful about the ownership of etcd2
$ sudo chown -R etcd:etcd /var/lib/etcd2

check 40-etcd-cluster.conf to start a clean cluster

remove 98-force-new-cluster.conf at the end

etcdctl member list
etcdctl cluster-health

# This is for bug of 1122.2.0
/var/lib/etcd2
rsync -avzh member tony@10.128.112.11:~/etcd-backup

$ ENDPOINTS="10.128.112.15:2379,10.128.112.19:2379,10.128.112.20:2379,10.128.112.21:2379"
$ ETCDCTL_API=3 ./etcdctl --endpoints $ENDPOINTS -w table endpoint status
$ ETCDCTL_API=3 ./etcdctl --endpoints=$ENDPOINTS endpoint health

$ ETCDCTL_API=3 ./etcdctl get "" --from-key --keys-only --limit 10
$ ETCDCTL_API=3 ./etcdctl get "" --from-key --print-value-only --limit 10
$ ETCDCTL_API=3 ./etcdctl get "" --from-key --keys-only --limit 20000 | grep tony-ubuntu-40rx7

Links

https://kubernetes.io/docs/tasks/administer-cluster/upgrade-1-6/

http://coreos.com/etcd/docs/latest/

https://coreos.com/etcd/docs/2.3.2/runtime-configuration.html

https://coreos.com/etcd/docs/latest/v2/admin_guide.html

https://coreos.com/etcd/docs/latest/upgrades/upgrade_3_0.html

https://github.com/projectcalico/cni-plugin/issues/281

https://github.com/tmjd/calico/blob/56643929427925a7a2251a1144ae50932b1b48bc/v2.1/getting-started/kubernetes/upgrade.md

https://coreos.com/blog/etcd3-a-new-etcd.html

http://coreos.com/blog/toward-etcd-v3-in-container-linux.html

https://github.com/coreos/etcd/blob/master/Documentation/upgrades/upgrade_3_0.md

http://coreos.com/blog/etcd-3-1-announcement.html

https://quay.io/repository/coreos/etcd?tab=tags

https://coreos.com/etcd/docs/3.1.8/getting-started-with-etcd.html

https://coreos.com/etcd/docs/3.1.8/os-faq.html

https://github.com/coreos/etcd/releases/

https://coreos.com/etcd/docs/3.1.8/upgrades/upgrade_3_0.html

https://coreos.com/etcd/docs/latest/op-guide/v2-migration.html

https://github.com/coreos/etcd/blob/v3.2.1/etcdctl/README.md#migrate-options

https://coreos.com/blog/migrating-applications-etcd-v3.html


## gopher-dance-long.gif

      
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              gopher-dance-long.gif
            
          
## training
- vim ------------------------------------------------------

% - find ( { [ ] } )
# , * - find word under the cursor.
g# , g*
0 ^ $ g_ f F t T , ;  - Move on current line.

	        {This is a book. It is not a pen.}

x , X - delete the character under the cursor and to the left of the cursor, respectively.
u , ctrl-r - undo and redo.

		This is a book.

w , W - word and extended word
Zone selection <action>a<object> or <action>i<object>

		---this;is:.:w

Visual selection: v,V,<C-v> , gv
Block selection 0<C-v><C-d>I-- [ESC]

abc
bef
123

Macros : qa do something q, @a, @@

/pattern
# , * - find word under the cursor.

:set incsearch
:set hlsearch

% - find matching ( { [
[{ - back to the {

		{
			{
			  foo
			}
		  bar
		}

bn - buffer previous
C-^ - previous buffer

viwp - past buffer on a word

"cy$
"cp

^E ^Y ^U ^D ^F ^B

~ change case

J - Join lines

iw is ip i' i" i` i( i[ i{ it
aw as ap a' a" a` a( a[ a{ at

i:<esc>ggVG:normal.<cr>

:%s/\s\+$//gc

# folds
zf zF zd zD zE

- vim-go ---------------------------------------------------

:GoUpdateBinaries
,r
,b
,c
yif , yaf
gS , gJ
ff <tab> , json <tab> , <C-j> - code template
:GoMetaLinter - style advises
:GoAlternate - jump to test file
gd , ctrl-] , ctrl-t - def movement
:GoDecls , :GoDeclsDir - similar to F8
]] , [[ - jump to func
:GoFiles - list package files
:GoDeps - list package dependency
:GoReferrers - find who is calling
:ccl , :pc , :lcl
:GoCallees , GoCallers
:GoRename
:GoFreevars
:GoImpl io.ReadWriteCloser
:GoImpl b *B fmt.Stringer
,a
:Ack
<C-x><C-o> , <tab>

- tmux -----------------------------------------------------

# session management
tmux ls (or tmux list-sessions)
tmux new -s session-name
tmux attach -t [session name]
tmux kill-session -t session-name

Ctrl-b d Detach from session
Ctrl-b s list out sessions

Ctrl-b c Create new window
Ctrl-b d Detach current client
Ctrl-b n Move to the next window
Ctrl-b p Move to the previous window
Ctrl-b & Kill the current window
Ctrl-b , Rename the current window
Ctrl-b q Show pane numbers (used to switch between panes)
Ctrl-b o Switch to the next pane
Ctrl-b ? List all keybindings

# moving between windows
Ctrl-b n (Move to the next window)
Ctrl-b p (Move to the previous window)
Ctrl-b w (List all windows / window numbers)
Ctrl-b window number (Move to the specified window number, the
default bindings are from 0 -- 9)

# Tiling commands
Ctrl-b % (Split the window vertically)
Ctrl-b " (Split window horizontally)
Ctrl-b o (Goto next pane)
Ctrl-b q (Show pane numbers, when the numbers show up type the key to go to that pane)
Ctrl-b { (Move the current pane left)
Ctrl-b } (Move the current pane right)

# Make a pane its own window
Ctrl-b : "break-pane"
Ctrl-b : "swap-window -s 0 -t 1"

# add to ~/.tmux.conf
bind | split-window -h
bind - split-window -v

# vi keys in copy mode
Ctrl-b [ - enter copy mode
Ctrl-b PageUp - enter copy mode
space - start selection
enter - end selection
Ctrl-b ] - paste

------------------------------------------------------------

## using-the-api.png

      
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              using-the-api.png
            
          
## vi-vim-cheat-sheet.gif

      
    Raw
  

              vi-vim-cheat-sheet.gif
            
          
## vim-move-shortcuts.png

      
    Raw
  

              vim-move-shortcuts.png
            
          
## work-flow.md

      
    Raw
  

              work-flow.md
            
          
    neovim install

https://github.com/neovim/neovim/wiki/Installing-Neovim#ubuntu 

https://github.com/neovim/neovim/wiki/FAQ#where-should-i-put-my-config-vimrc
dein.vim install

https://github.com/Shougo/dein.vim 

~/.local/share/dein
golang install

https://golang.org/doc/install/source 

vi ~/.profile
set ssh keys

~/.ssh/id_rsa 

~/.ssh/id_rsa.pub
Way too many things...
	- vim ------------------------------------------------------

	% - find ( { [ ] } )
	# , * - find word under the cursor.
	g# , g*
	0 ^ $ g_ f F t T , ; - Move on current line.

	{This is a book. It is not a pen.}

	x , X - delete the character under the cursor and to the left of the cursor, respectively.
	u , ctrl-r - undo and redo.

	This is a book.

	w , W - word and extended word
	Zone selection <action>a<object> or <action>i<object>

	---this;is:.:w

	Visual selection: v,V,<C-v> , gv
	Block selection 0<C-v><C-d>I-- [ESC]

	abc
	bef
	123

	Macros : qa do something q, @a, @@

	/pattern
	# , * - find word under the cursor.

	:set incsearch
	:set hlsearch

	% - find matching ( { [
	[{ - back to the {

	{
	{
	foo
	}
	bar
	}

	bn - buffer previous
	C-^ - previous buffer

	viwp - past buffer on a word

	"cy$
	"cp

	^E ^Y ^U ^D ^F ^B

	~ change case

	J - Join lines

	iw is ip i' i" i` i( i[ i{ it
	aw as ap a' a" a` a( a[ a{ at

	i:<esc>ggVG:normal.<cr>

	:%s/\s\+$//gc

	# folds
	zf zF zd zD zE

	- vim-go ---------------------------------------------------

	:GoUpdateBinaries
	,r
	,b
	,c
	yif , yaf
	gS , gJ
	ff <tab> , json <tab> , <C-j> - code template
	:GoMetaLinter - style advises
	:GoAlternate - jump to test file
	gd , ctrl-] , ctrl-t - def movement
	:GoDecls , :GoDeclsDir - similar to F8
	]] , [[ - jump to func
	:GoFiles - list package files
	:GoDeps - list package dependency
	:GoReferrers - find who is calling
	:ccl , :pc , :lcl
	:GoCallees , GoCallers
	:GoRename
	:GoFreevars
	:GoImpl io.ReadWriteCloser
	:GoImpl b *B fmt.Stringer
	,a
	:Ack
	<C-x><C-o> , <tab>

	- tmux -----------------------------------------------------

	# session management
	tmux ls (or tmux list-sessions)
	tmux new -s session-name
	tmux attach -t [session name]
	tmux kill-session -t session-name

	Ctrl-b d Detach from session
	Ctrl-b s list out sessions

	Ctrl-b c Create new window
	Ctrl-b d Detach current client
	Ctrl-b n Move to the next window
	Ctrl-b p Move to the previous window
	Ctrl-b & Kill the current window
	Ctrl-b , Rename the current window
	Ctrl-b q Show pane numbers (used to switch between panes)
	Ctrl-b o Switch to the next pane
	Ctrl-b ? List all keybindings

	# moving between windows
	Ctrl-b n (Move to the next window)
	Ctrl-b p (Move to the previous window)
	Ctrl-b w (List all windows / window numbers)
	Ctrl-b window number (Move to the specified window number, the
	default bindings are from 0 -- 9)

	# Tiling commands
	Ctrl-b % (Split the window vertically)
	Ctrl-b " (Split window horizontally)
	Ctrl-b o (Goto next pane)
	Ctrl-b q (Show pane numbers, when the numbers show up type the key to go to that pane)
	Ctrl-b { (Move the current pane left)
	Ctrl-b } (Move the current pane right)

	# Make a pane its own window
	Ctrl-b : "break-pane"
	Ctrl-b : "swap-window -s 0 -t 1"

	# add to ~/.tmux.conf
	bind \| split-window -h
	bind - split-window -v

	# vi keys in copy mode
	Ctrl-b [ - enter copy mode
	Ctrl-b PageUp - enter copy mode
	space - start selection
	enter - end selection
	Ctrl-b ] - paste

	------------------------------------------------------------