Re: Random tools I've found interesting
Hi,
Thought I would add to this with my own findings. Taken from my Ansible
playbook, but should be fairly readable :-).
On 09/03/2020 11:50, Christian Ehrhardt wrote:
> Not my tool so I can't point to my repo.
> But also really helpful when dealing with git-repos on a daily base.
>
> https://github.com/jimeh/git-aware-prompt
>
> Lets your prompt always list in which branch you are (I also show if it
> is dirty).
> Let me know if you need help setting this up...
Display a multitude of GIT information in the prompt:
```
- name: Ensure GIT helper scripts
get_url:
url: "{{ item.url }}"
dest: "{{ item.dest | default('~/.' + item.url | basename) }}"
backup: true
loop:
- url:
https://github.com/git/git/raw/master/contrib/completion/git-prompt.sh
- name: Ensure GIT helper scripts in bashrc
blockinfile:
path: ~/.bashrc
block: |
if [ -r ~/.git-completion.bash ]; then
source ~/.git-completion.bash
fi
if [ -r ~/.git-prompt.sh ]; then
source ~/.git-prompt.sh
GIT_PS1_SHOWDIRTYSTATE=true
GIT_PS1_SHOWSTASHSTATE=true
#GIT_PS1_SHOWUNTRACKEDFILES=true
GIT_PS1_SHOWUPSTREAM="auto"
#GIT_PS1_STATESEPARATOR="SP"
#GIT_PS1_DESCRIBESTYLE="default"
GIT_PS1_SHOWCOLORHINTS=true
GIT_PS1_HIDE_IF_PWD_IGNORED=true
SPLITPS1="\"$(echo $PS1 | awk -F\$ '{OFS="$";NF--;print $0;}'
| sed 's/\\$//')\" \"\\\$$(echo $PS1 | awk -F\$ '{OFS="$";print $NF;}') \""
PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND;} __git_ps1
$SPLITPS1"
fi
marker: "# {mark} GIT HELPERS"
```
Rename your TMUX window dynamically with your current directory:
```
- name: Ensure TMUX title set to $PWD
blockinfile:
path: ~/.bashrc
block: |
if [ -n "$TMUX" ] && [ -n "$BASH" ]; then
__set_tmux_title() {
if [ "$(pwd)" == "$(echo ~)" ]; then
echo -ne "\033k$(hostname -s)\033\\"
else
title=$(pwd)
echo -ne "\033k${title/*\//}\033\\"
unset title
fi
}
PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND;}
__set_tmux_title"
fi
marker: '# {mark} TMUX TITLE'
insertbefore: '^# enable programmable completion'
- name: Ensure Byobu TMUX profile
copy:
content: |
source $BYOBU_PREFIX/share/byobu/profiles/tmux
set-option -g allow-rename on
dest: ~/.byobu/profile.tmux
backup: true
```
Hopefully someone finds it useful :-)
Cheers,
Nafallo
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Re: Random tools I've found interesting
On Mon, Mar 9, 2020 at 11:43 AM Christian Ehrhardt < christian.ehrha...@canonical.com> wrote: > > > On Mon, Mar 9, 2020 at 11:40 AM Christian Ehrhardt < > christian.ehrha...@canonical.com> wrote: > >> >> >> On Thu, Mar 5, 2020 at 8:53 PM Bryce Harrington < >> bryce.harring...@canonical.com> wrote: >> >>> As followup to our retrospective, this past year I've found and played >>> with several tools, that I thought might be worth show-and-telling >>> >> >> Yes this is just what I had in mind - the storytelling to get attention >> to it. >> >> > > Breaking into a new thread to talk about the non git backed one-liners and > in-archive tools > As we discussed I have organized my pre-existing tools git-repo into per-user subdirectory and shared them at [1]. In the fashion of this mails "storytelling" the README.md [3] serves as an entry point to more easily discover what some of those tools might be about. It is a start and let's grow from here ... All members of ubuntu-server Team [2] have commit access there, so please feel free to add your own ugly and broken scripts just as I did with mine :-) [1]: https://code.launchpad.net/~ubuntu-server/ubuntu-helpers/+git/ubuntu-helpers [2]: https://launchpad.net/~ubuntu-server [3]: https://git.launchpad.net/~ubuntu-server/ubuntu-helpers/tree/README.md > As you know if you often run the same lengthy command it just takes time > without gain. > While trivial I can't summarize how much time I saved with: > > alias cdl="cd ~/work/libvirt/libvirt-ubuntu-git/" > alias cdq="cd ~/work/qemu/qemu.git/" > > On a similar note for git ubuntu sponsors: > > alias gutu='git ubuntu tag --upload && git describe HEAD' > > And on complex multi remot many many branch git repos when you come back > and don't know where you left > > alias gitltr="git for-each-ref --sort=committerdate refs/heads/ > --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - > %(color:red)%(objectname:short)%(color:reset) - %(contents:subject) - > %(authorname) (%(color:green)%(committerdate:relative)%(color:reset))'" > > The latter is a bit lengthy, but it lists you the last modified in order > like "ls -ltr" but for git branches. > Example: > $ gitltr > ubuntu/devel - 1ed66190 - Import patches-unapplied version 1.8.5-5ubuntu1 > to ubuntu/focal-proposed - Steve Langasek (2 weeks ago) > i-c-build - 8dd15693 - changelog: go to pre 1.9 version for HW > acceleration features - Christian Ehrhardt (44 minutes ago) > * export-i-c-build - 9d4f471e - d/compat: set version 11 for Bionic - > Christian Ehrhardt (37 minutes ago) > -- Christian Ehrhardt Staff Engineer, Ubuntu Server Canonical Ltd -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Random tools I've found interesting
On Mon, Mar 9, 2020 at 11:40 AM Christian Ehrhardt < christian.ehrha...@canonical.com> wrote: > > > On Thu, Mar 5, 2020 at 8:53 PM Bryce Harrington < > bryce.harring...@canonical.com> wrote: > >> As followup to our retrospective, this past year I've found and played >> with several tools, that I thought might be worth show-and-telling >> > > Yes this is just what I had in mind - the storytelling to get attention to > it. > > >> about, and given our corona-sprint we're in will do so via email: >> >> >> == so-trello == >> >> This CLI allows programmatic interaction with Trello boards. It was >> written by our own Kernel team's Andy Whitcroft. >> >> This looks like it could be handy for bulk operations, cronned/automated >> card update tasks, and the like. >> >> So-trello can be downloaded from the snap store >> (https://snapcraft.io/so-trello), or installed directly: >> >> $ sudo snap install so-trello >> >> >> == LXD Login == >> >> I'm always looking for ways to improve my user experience with lxc >> containers. Logging in has always felt a bit baroque, so I've been >> scouring for simpler solutions. I found out that LXD supports >> 'aliases', and that you can construct a login alias, which works pretty >> good. >> >> $ lxc alias add login 'exec @ARGS@ --mode interactive -- bash -xac >> $@bryce - exec /bin/login -p -f ' >> >> (The trailing space after the -f is important). Replace 'bryce' with >> 'ubuntu' or whatever username you use in your containers. >> >> Unfortunately, it still requires running `script /dev/null` after >> logging in... would love to figure out how to eliminate that step. >> >> Bonus, here's an alias to make a prettier lxc listing: >> >> $ lxc alias add ls 'list -c ns4,user.comment:comment' >> >> If I'm late to the party and y'all already know about lxd aliases, well >> boo, but show me *your* aliases! (And we should add this to starter >> docs...) >> >> >> == YAML Parser for Bash scripts - yaml.sh == >> >> I like YAML and I like writing in Bash, but the two don't fit together >> naturally. Scouring the web for solutions, I found AdrianDC's yaml.sh >> which reads a YAML file and registers its parameters as prefixed ENV >> vars. Quite handy. >> >> yaml.sh can be downloaded from: >> >> $ wget >> https://raw.githubusercontent.com/jasperes/bash-yaml/master/script/yaml.sh >> >> >> == shellcheck == >> >> Probably known to all Bash aficionados already, but 'shellcheck' is so >> handy worth extra mention. It runs a lint check on bash scripts to >> identify syntax improvements. Very helpful for catching errors too. >> >> $ sudo apt-get install shellcheck >> > > I use that as well and if you git-clone syntastic into your vim you'll get > it integrated (along others) on writing a file. > > $ cd ~/.vim/bundle > $ git clone https://github.com/scrooloose/syntastic.git > > And BTW tools ..., managing vim plugins with > $ apt install vim-pathogen > Not my tool so I can't point to my repo. But also really helpful when dealing with git-repos on a daily base. https://github.com/jimeh/git-aware-prompt Lets your prompt always list in which branch you are (I also show if it is dirty). Let me know if you need help setting this up... > == distro-info == >> >> Another one I'm sure you all already know about, but if not, distro-info >> is another handy tool for looking up information about Debian and Ubuntu >> releases. Good way to avoid hardcoding things in your own scripts. >> >> $ sudo apt-get install distro-info >> >> What's the current development version's codename? >> >> $ distro-info -d >> focal >> >> What's bionic's release number? >> >> $ distro-info --release --series bionic | cut -d' ' -f1 >> 18.04 >> >> Is disco still supported? >> >> $ (distro-info --supported | grep disco) || echo "Nope!" >> Nope! >> >> >> >> >> >> >> -- >> ubuntu-server mailing list >> ubuntu-server@lists.ubuntu.com >> https://lists.ubuntu.com/mailman/listinfo/ubuntu-server >> More info: https://wiki.ubuntu.com/ServerTeam > > > > -- > Christian Ehrhardt > Staff Engineer, Ubuntu Server > Canonical Ltd > -- Christian Ehrhardt Staff Engineer, Ubuntu Server Canonical Ltd -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Random tools I've found interesting
On Mon, Mar 9, 2020 at 11:40 AM Christian Ehrhardt < christian.ehrha...@canonical.com> wrote: > > > On Thu, Mar 5, 2020 at 8:53 PM Bryce Harrington < > bryce.harring...@canonical.com> wrote: > >> As followup to our retrospective, this past year I've found and played >> with several tools, that I thought might be worth show-and-telling >> > > Yes this is just what I had in mind - the storytelling to get attention to > it. > > Breaking into a new thread to talk about the non git backed one-liners and in-archive tools As you know if you often run the same lengthy command it just takes time without gain. While trivial I can't summarize how much time I saved with: alias cdl="cd ~/work/libvirt/libvirt-ubuntu-git/" alias cdq="cd ~/work/qemu/qemu.git/" On a similar note for git ubuntu sponsors: alias gutu='git ubuntu tag --upload && git describe HEAD' And on complex multi remot many many branch git repos when you come back and don't know where you left alias gitltr="git for-each-ref --sort=committerdate refs/heads/ --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(color:red)%(objectname:short)%(color:reset) - %(contents:subject) - %(authorname) (%(color:green)%(committerdate:relative)%(color:reset))'" The latter is a bit lengthy, but it lists you the last modified in order like "ls -ltr" but for git branches. Example: $ gitltr ubuntu/devel - 1ed66190 - Import patches-unapplied version 1.8.5-5ubuntu1 to ubuntu/focal-proposed - Steve Langasek (2 weeks ago) i-c-build - 8dd15693 - changelog: go to pre 1.9 version for HW acceleration features - Christian Ehrhardt (44 minutes ago) * export-i-c-build - 9d4f471e - d/compat: set version 11 for Bionic - Christian Ehrhardt (37 minutes ago) -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Random tools I've found interesting
On Thu, Mar 5, 2020 at 8:53 PM Bryce Harrington < bryce.harring...@canonical.com> wrote: > As followup to our retrospective, this past year I've found and played > with several tools, that I thought might be worth show-and-telling > Yes this is just what I had in mind - the storytelling to get attention to it. > about, and given our corona-sprint we're in will do so via email: > > > == so-trello == > > This CLI allows programmatic interaction with Trello boards. It was > written by our own Kernel team's Andy Whitcroft. > > This looks like it could be handy for bulk operations, cronned/automated > card update tasks, and the like. > > So-trello can be downloaded from the snap store > (https://snapcraft.io/so-trello), or installed directly: > > $ sudo snap install so-trello > > > == LXD Login == > > I'm always looking for ways to improve my user experience with lxc > containers. Logging in has always felt a bit baroque, so I've been > scouring for simpler solutions. I found out that LXD supports > 'aliases', and that you can construct a login alias, which works pretty > good. > > $ lxc alias add login 'exec @ARGS@ --mode interactive -- bash -xac > $@bryce - exec /bin/login -p -f ' > > (The trailing space after the -f is important). Replace 'bryce' with > 'ubuntu' or whatever username you use in your containers. > > Unfortunately, it still requires running `script /dev/null` after > logging in... would love to figure out how to eliminate that step. > > Bonus, here's an alias to make a prettier lxc listing: > > $ lxc alias add ls 'list -c ns4,user.comment:comment' > > If I'm late to the party and y'all already know about lxd aliases, well > boo, but show me *your* aliases! (And we should add this to starter > docs...) > > > == YAML Parser for Bash scripts - yaml.sh == > > I like YAML and I like writing in Bash, but the two don't fit together > naturally. Scouring the web for solutions, I found AdrianDC's yaml.sh > which reads a YAML file and registers its parameters as prefixed ENV > vars. Quite handy. > > yaml.sh can be downloaded from: > > $ wget > https://raw.githubusercontent.com/jasperes/bash-yaml/master/script/yaml.sh > > > == shellcheck == > > Probably known to all Bash aficionados already, but 'shellcheck' is so > handy worth extra mention. It runs a lint check on bash scripts to > identify syntax improvements. Very helpful for catching errors too. > > $ sudo apt-get install shellcheck > I use that as well and if you git-clone syntastic into your vim you'll get it integrated (along others) on writing a file. $ cd ~/.vim/bundle $ git clone https://github.com/scrooloose/syntastic.git And BTW tools ..., managing vim plugins with $ apt install vim-pathogen == distro-info == > > Another one I'm sure you all already know about, but if not, distro-info > is another handy tool for looking up information about Debian and Ubuntu > releases. Good way to avoid hardcoding things in your own scripts. > > $ sudo apt-get install distro-info > > What's the current development version's codename? > > $ distro-info -d > focal > > What's bionic's release number? > > $ distro-info --release --series bionic | cut -d' ' -f1 > 18.04 > > Is disco still supported? > > $ (distro-info --supported | grep disco) || echo "Nope!" > Nope! > > > > > > > -- > ubuntu-server mailing list > ubuntu-server@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/ubuntu-server > More info: https://wiki.ubuntu.com/ServerTeam -- Christian Ehrhardt Staff Engineer, Ubuntu Server Canonical Ltd -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Random tools I've found interesting
> On Fri, Mar 6, 2020 at 12:47 PM Ryan Harper wrote:
> > # /home/rharper/.ssh/config.defaults
> > Host *.lxd
> > User ubuntu
> > IdentityFile /home/rharper/.ssh/id_rsa
> > StrictHostKeyChecking no
> > UserKnownHostsFile /dev/null
> > ProxyCommand nc $(lxc list -c s4 $(basename %h .lxd) | awk '/RUNNING/
> > {print $4}') %p
>
> I'm sad because DNS resolution used to work out of the box for *.lxd
> domains in the past. It was easy to configure "Hey, for this domain
> lxd, use that nameserver". I haven't been able to configure this
> anymore in recent ubuntu releases. The best I got was a dns loop and
> 100% cpu usage.
I loved using the proxy command for it. I've been putting lxd network
into kvm network and using the NSS libvirt plugins to solve lxc names:
rafaeldtinoco@workstation:~$ virsh net-dumpxml default
default
c6d5e95a-6c5a-4e17-9ae3-38f43c386c0d
rafaeldtinoco@workstation:~$ cat /etc/nsswitch.conf | grep hosts
hosts: files libvirt_guest libvirt dns
rafaeldtinoco@workstation:~$ lxc profile show default | grep -B2 brdefault
name: eth0
nictype: bridged
parent: brdefault
So nss would solve all libvirt virtual machine names first, then
hostnames got by the dhcp leases from virtual machines AND lxd
containers and then all th rest. But I guess I can use .lxd and .kvm
(virsh list --all) and it will be better.
For the LXD profiles, I have a few depending on different needs:
https://github.com/rafaeldtinoco/provision/tree/master/lxd/profiles
$ lxc launch ubuntu-daily:focal apache2fix
$ lxc launch -p debian-default images: debian
$ lxc launch -p cluster ubuntu-daily:focal pacemakerdev
and all my networks are libvirt networks so I can have LXD and KVM
guests in the same bridges, like when using the cluster yaml profile
definition:
devices:
eth0:
name: eth0
nictype: bridged
parent: brdefault
type: nic
iscsi01:
name: iscsi01
nictype: bridged
parent: iscsi01
type: nic
iscsi02:
name: iscsi02
nictype: bridged
parent: iscsi02
type: nic
...
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Re: Random tools I've found interesting
Hi
On Fri, Mar 6, 2020 at 12:47 PM Ryan Harper wrote:
> # /home/rharper/.ssh/config.defaults
> Host *.lxd
> User ubuntu
> IdentityFile /home/rharper/.ssh/id_rsa
> StrictHostKeyChecking no
> UserKnownHostsFile /dev/null
> ProxyCommand nc $(lxc list -c s4 $(basename %h .lxd) | awk '/RUNNING/
> {print $4}') %p
I'm sad because DNS resolution used to work out of the box for *.lxd
domains in the past. It was easy to configure "Hey, for this domain
lxd, use that nameserver". I haven't been able to configure this
anymore in recent ubuntu releases. The best I got was a dns loop and
100% cpu usage.
--
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More info: https://wiki.ubuntu.com/ServerTeam
Re: Random tools I've found interesting
On Fri, Mar 06, 2020 at 09:46:29AM -0600, Ryan Harper wrote: > (neipa) ~ % ssh f2.lxd > Warning: Permanently added 'f2.lxd' (ECDSA) to the list of known hosts. > > ubuntu@f2:~$ I have something similar, but different: https://git.launchpad.net/~racb/+git/tools/tree/lxd-ssh Differences: No ssh host key spam as it automatically syncs ~/.ssh/known_hosts with the container's public keys. Doesn't need/rely on networking - it uses lxc exec internally. signature.asc Description: PGP signature -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
Re: Random tools I've found interesting
On Thu, Mar 5, 2020 at 1:53 PM Bryce Harrington <
bryce.harring...@canonical.com> wrote:
> As followup to our retrospective, this past year I've found and played
> with several tools, that I thought might be worth show-and-telling
> about, and given our corona-sprint we're in will do so via email:
>
>
> == LXD Login ==
>
> I'm always looking for ways to improve my user experience with lxc
> containers. Logging in has always felt a bit baroque, so I've been
> scouring for simpler solutions. I found out that LXD supports
> 'aliases', and that you can construct a login alias, which works pretty
> good.
>
> $ lxc alias add login 'exec @ARGS@ --mode interactive -- bash -xac
> $@bryce - exec /bin/login -p -f '
>
If you're using system containers with networking, I very much like this
ssh config:
# /home/rharper/.ssh/config.defaults
Host *.lxd
User ubuntu
IdentityFile /home/rharper/.ssh/id_rsa
StrictHostKeyChecking no
UserKnownHostsFile /dev/null
ProxyCommand nc $(lxc list -c s4 $(basename %h .lxd) | awk '/RUNNING/
{print $4}') %p
With an update to the lxd default profile:
(neipa) ~ % cat user-data.txt
#cloud-config
ssh_authorized_keys:
- ssh-rsa
(neipa) ~ % lxc profile set default user.user-data - < user-data.txt
(neipa) ~ % lxc launch ubuntu-daily:focal f2
Creating f2
Starting f2
(neipa) ~ % ssh f2.lxd
Warning: Permanently added 'f2.lxd' (ECDSA) to the list of known hosts.
ubuntu@f2:~$
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Re: Random tools I've found interesting
> == LXD Login == > > $ lxc alias add login 'exec @ARGS@ --mode interactive -- bash -xac $@bryce > - exec /bin/login -p -f ' > This is similar to 'ctool exec --container=mycontainer --user=bryce'. It doesn't use 'login', so I'm not sure what effect that actually has on things, but you don't need 'script /dev/null'. ctool is part of the scripts ubuntu server team uses for different things. It lives https://github.com/CanonicalLtd/uss-tableflip/tree/master/scripts . I just put a pull request up to add some better usage doc: https://github.com/CanonicalLtd/uss-tableflip/pull/38/files On Thu, Mar 5, 2020 at 2:53 PM Bryce Harrington wrote: > > As followup to our retrospective, this past year I've found and played > with several tools, that I thought might be worth show-and-telling > about, and given our corona-sprint we're in will do so via email: > > > == so-trello == > > This CLI allows programmatic interaction with Trello boards. It was > written by our own Kernel team's Andy Whitcroft. > > This looks like it could be handy for bulk operations, cronned/automated > card update tasks, and the like. > > So-trello can be downloaded from the snap store > (https://snapcraft.io/so-trello), or installed directly: > > $ sudo snap install so-trello > > > == LXD Login == > > I'm always looking for ways to improve my user experience with lxc > containers. Logging in has always felt a bit baroque, so I've been > scouring for simpler solutions. I found out that LXD supports > 'aliases', and that you can construct a login alias, which works pretty > good. > > $ lxc alias add login 'exec @ARGS@ --mode interactive -- bash -xac $@bryce > - exec /bin/login -p -f ' > > (The trailing space after the -f is important). Replace 'bryce' with > 'ubuntu' or whatever username you use in your containers. > > Unfortunately, it still requires running `script /dev/null` after > logging in... would love to figure out how to eliminate that step. > > Bonus, here's an alias to make a prettier lxc listing: > > $ lxc alias add ls 'list -c ns4,user.comment:comment' > > If I'm late to the party and y'all already know about lxd aliases, well > boo, but show me *your* aliases! (And we should add this to starter > docs...) > > > == YAML Parser for Bash scripts - yaml.sh == > > I like YAML and I like writing in Bash, but the two don't fit together > naturally. Scouring the web for solutions, I found AdrianDC's yaml.sh > which reads a YAML file and registers its parameters as prefixed ENV > vars. Quite handy. > > yaml.sh can be downloaded from: > > $ wget > https://raw.githubusercontent.com/jasperes/bash-yaml/master/script/yaml.sh > > > == shellcheck == > > Probably known to all Bash aficionados already, but 'shellcheck' is so > handy worth extra mention. It runs a lint check on bash scripts to > identify syntax improvements. Very helpful for catching errors too. > > $ sudo apt-get install shellcheck > > > == distro-info == > > Another one I'm sure you all already know about, but if not, distro-info > is another handy tool for looking up information about Debian and Ubuntu > releases. Good way to avoid hardcoding things in your own scripts. > > $ sudo apt-get install distro-info > > What's the current development version's codename? > > $ distro-info -d > focal > > What's bionic's release number? > > $ distro-info --release --series bionic | cut -d' ' -f1 > 18.04 > > Is disco still supported? > > $ (distro-info --supported | grep disco) || echo "Nope!" > Nope! > > > > > > > -- > ubuntu-server mailing list > ubuntu-server@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/ubuntu-server > More info: https://wiki.ubuntu.com/ServerTeam -- ubuntu-server mailing list ubuntu-server@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
