remotemon

remote monitoring, since there is no ansible for raspberry pi.

Usage no npm install needed!

<script type="module">
  import remotemon from 'https://cdn.skypack.dev/remotemon';
</script>

README

Install

npm install -g remotemon

remotemon is a cli automation tool for building/copying/executing code on remote machines and monitoring the result.

Its main use-case is for developing / running scripts on remote machines like the raspberry pi ..

.. but can also be used for purposes that would normally be done using make / nodemon 😀.

remotemon reboot # reboot remote machine 😏
remotemon ssh45 # to change default ssh port to 45 👮🏼‍♂️

# Example Config File
reboot:
  remote:
    - sudo reboot

shutdown:
  remote:
    - shutdown -h now

ssh45:
  local:
    - scp sshd_config {{remotehost}}:/tmp/sshd_config
  remote:
    - sudo mv /tmp/sshd_config /etc/ssh/sshd_config
    - sudo systemctl restart ssh.service

🟡 How to Use

A local configuration files (.remotemon.yaml) is used to organize different sub-commands to run in a project.

⛔️ In remotemon lingo a project is just a directory. ⛔️

First argument to remotemon is the name of the build routine to use, subsequent arguments can be used internally as variables using handlebar syntax (eg. {{0}}), or .global variables using = ( eg. file=main.js ).

~/app:(dev*) remotemon shutdown

Running remotemon without any arguments makes remotemon execute default routine present in provided configuration file.

~/app:(dev*) remotemon

🟡 Creating Configuration YAML File

  • Quick Example
  remotehost: pi@192.152.65.12
  remotefold: ~/test
  local: make local
  remote: make remote

  remotehost: pi@192.152.65.12
  remotefold: ~/test
  local: make local
  remote: make remote

  remotehost: pi@192.152.65.12
  remotefold: ~/test
  local: make local
  remote: make remote
  rsync:                        # rsync options
    - recursive
    - exclude:
      - .gitignore
      - .ls
      - .git

  remotehost: pi@192.152.65.12
  remotefold: ~/test
  local: make local
  remote: make remote
  rsync:
    - recursive
    - exclude:
      - .gitignore
      - .ls
      - .git
  test1:                        # custom routine
    remotefold: ~/test1

  • Creating custom named builds

    Named builds can be created at top-level as long as the name does not clash with reserved keyword, they cannot also contain / character in their name ( e.g mybui/ld1 would be considered incorrect ):

mybuild1:
  remotehost: pi@192.152.65.12
  remotefold: ~/test
  local: make pi1
  remote: make mybuild1
mybuild2:
  remotehost: pi@192.168.43.51
  remotefold: ~/build
  local: make pi2
  remote: make mybuild2

values not provided in a build are merged with default provided at top-level, in case defaults don't exist at top level then values are extracted from module's internal defaults.

rsync:
  - recursive
  - exclude:
    - .gitignore
    - .ls
    - .git
mybuild1:
  remotehost: pi@192.152.65.12
  remotefold: ~/test
  local: make pi1
  remote: make mybuild1
mybuild2:
  remotehost: pi@192.152.65.12
  remotefold: ~/build
  local: make pi2
  remote: make mybuild2

In the above config file for example, mybuild1 and mybuild2 get their rsync values from the common rsync field.

Since rsync's default src and des are not provided by user in our config file, they are derived from remotemon's internal defaults.

🟡 all configuration options

  • remotehost - {username}@{ipaddress} / ssh name of remote client.

  • remotefold - folder in remote client where we want to execute our script.

  • watch - local file(s) or folders(s) to watch for changes.

  • ignore - files to not watch.

  • pre - local commands to run before setting up watch, runs only once.

  • local - local commands to run after a change in file is detected.

  • remote - command to execute in remote client.

  • final - command to execute after remote returns exit 0.

  • ssh - custom ssh config options, default is -tt -o LogLevel=QUIET.

  • verbose - hardcode verbose level of printing for command.

  • silent - hardcode commandline --silent option ( use sparsely ).

  • inpwd - specify if the command is run in the directory of the project, or in the working directory, by default(false) it runs in project directory.

  • description - provide a brief description of what the command does.

  • defarg - default values for empty commandline arguments, for enforcing minimum commandline arguments, a number can be provided.

  • initialize - boolean value to specify if a first run is performed or not when command is run, default is true.

  • rsync - rsync options ( currently supported ) :

    • src - source folder(s) to sync.

    • des - destination folder in remote client.

    • recursive▪️verbose▪️quiet▪️no-motd▪️exclude:▪️checksum▪️archive▪️relative▪️no-OPTION▪️no-implied-dirs▪️backup▪️update▪️inplace▪️append▪️append-verify▪️dirs▪️links▪️copy-links▪️copy-unsafe-links▪️safe-links▪️copy-dirlinks▪️keep-dirlinks▪️hard-links▪️perms▪️executability▪️chmod:▪️acls▪️xattrs▪️owner▪️group▪️devices▪️specials▪️devices▪️specials▪️times▪️omit-dir-times▪️super▪️fake-super▪️sparse▪️dry-run▪️whole-file▪️one-file-system▪️existing▪️ignore-existing▪️remove-soucre-files▪️del▪️delete▪️delete-before▪️delete-during▪️delete-delay▪️delete-after▪️delete-excluded▪️ignore-errors▪️force▪️partial▪️delay-updates▪️prune-empty-dirs▪️numeric-ids▪️ignore-times▪️size-only▪️compress▪️cvs-exclude▪️F▪️from0▪️protect-args▪️blocking-io▪️stats▪️8-bit-output▪️human-readable▪️progress▪️P▪️itemize-changes▪️list-only

    • block-size:▪️rsh:▪️rsync-path:▪️max-delete:▪️max-size:▪️max-size:▪️partial-dir:▪️timeout:▪️contimeout:▪️modify-window:▪️temp-dir:▪️fuzzy:▪️compare-dest:▪️copy-dest:▪️link-dest:▪️compress-level:▪️skip-compress:▪️filter:▪️exclude:▪️exclude-from:▪️include:▪️include-from:▪️files-from:▪️address:▪️port:▪️sockopts:▪️out-format:▪️log-file:▪️log-file-format:▪️password-file:▪️bwlimit:▪️write-batch:▪️only-write-batch:▪️read-batch:▪️protocol:▪️iconv:▪️checksum-seed:

🟡 cli variables

  • Named

    In make we can change internal variables (eg.env,file) from the command line in this way:

    make file=/dist/main.js
make env=prod file=/dist/main.js
make compile env=prod file=/dist/main.js

    in remotemon the same thing can do done :

    remotemon file=/dist/main.js

    it changes the internal value(s) of associated key in global:

    global:
file: /dist/main.js # <-- old value replaced with value taken from commandline
remotehost: pi@192.152.65.12
remotefold: ~/test
local: make local {{global.file}}
remote: make remote

    this way we can edit the values of our makefile without opening either .remotemon.yaml or makefile.

  • Unnamed

    Sometimes it's more convenient to not have to name your variables.

    Instead of remotemon file=/dist/main.js we would like to do remotemon /dist/main.js.

    We can in situation like that use numbered templating {{0}},{{1}} in our config file.

    defarg field can also be used to provide default values if the user does not specify them.

    If we know the most common file name is /dist/main.js we could use defarg: [/dist/main.js] to not have to always provide the filename as an argument.

When not to use remotemon ?

  • when your build process gets complicated enough to warrant the use of gulpfiles, makefiles, etc.

  • remotemon is meant for situations where you are constantly having to configure linux system files, but also developing and running code on remote machines, that involves complicated rsync and ssh commands, but prefer to change those files from the comfort of your favorite local text editor - not everybody uses vim.

  • --edit

    It's possible to make permanent edits on .remotemon.yaml without opening them using the -e/--edit flag.

    For example if the IP address of the host has changed, you could do :

    remotemon -e remotehost=user@192.168.43.52

    and the remotehost field would have value of user@192.168.43.52

    It's also possible to change inner values of custom defined tasks ( using / to define nesting ) :

    remotemon -e mybuild1/remotehost=user@192.168.43.52

🟡 all commandline options

  • --watch-config-file or -w restarts on config file change by default.

  • --dry-run or -d would disable all execution, used for checking and making sure all the commands are accurate.

  • --verbose,-v ( also -vv) would show all the command in their full form.

  • -l,--list to see all the different commands from the command line itself.

  • -m --auto-make-directory make remote directory if it doesn't exist.

    -mm ( with root permission )

  • -V --version displays version number

  • -c --config path to YAML configuration file

  • -n --no-watch force disable any and all watches

  • -s --silent do not show remotemon message

  • -e --edit make permanent edits to .remotemon.yaml values.

  • -p --project folder name to look for .remotemon.yaml

🔴 Bugs

For now it's not possible for remotemon to do two levels of referencing in config file, as remotemon uses tampax, and the issue is with tampax, write your config files to work around the issue ( for now ).

LICENCE

  • Code released under BSD-3-Clause.
  • Documentation and images released under CC BY-NC-ND 4.0.
  • details can be found here.