added docker scripts

docker/README.md

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+### Docker
+
+This directory contains few simple scripts to simplify docker workflow in nushell
+
+### Deployment
+
+source the scripts in startup section of your `config.toml` file
+
+### Usage
+* docker.nu - Wrapper around regular docker command, returns a formatted nushell table
+* compose.nu - Finds compose files of all running containers and then stops them via `docker-compose down`
+
+### Notes
+* Both commands assume the user is a mamber of `docker` group, if that is not the case prepend the commands with `sudo`
+
+* docker.nu should be sourced before compose.nu in your `config.toml` file as the latter uses the former

docker/compose.nu

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+# stops all running containers via their compose files
+def compose [] {
+  docker ps|
+  each {
+    docker inspect $it.ID|
+    get Config.Labels|
+    select 'com.docker.compose.project.working_dir' 'com.docker.compose.project.config_files'|
+    rename dir file
+    }|
+    uniq|
+    each {
+      docker-compose -f (build-string $it.dir '/' $it.file) down
+      }
+}

docker/docker.nu

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+# docker wrapper that returns a nushell table
+def docker [
+  ...args:string # command to be passed to the real docker command
+  ] {
+  ^docker $args --format='{{json .}}'|
+  lines|
+  each {
+    $it|
+    from json
+  }
+}