Merge pull request #227 from nataindata/apache-airflow

Apache Airflow module

apache-airflow/README.md

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+---
+display_name: airflow
+description: A module that adds Apache Airflow in your Coder template
+icon: ../.icons/airflow.svg
+maintainer_github: nataindata
+verified: false
+tags: [airflow, idea, web, helper]
+---
+
+# airflow
+
+A module that adds Apache Airflow in your Coder template.
+
+```tf
+module "airflow" {
+  source  = "registry.coder.com/modules/airflow/coder"
+  version = "1.0.2"
+}
+```
+
+![Airflow](../.images/airflow.png)
+
+## Examples
+
+### Example 1
+
+Install the Dracula theme from [OpenVSX](https://open-vsx.org/):
+
+```tf
+module "airflow" {
+  source   = "registry.coder.com/modules/airflow/coder"
+  version  = "1.0.2"
+  agent_id = coder_agent.example.id
+  extensions = [
+    "dracula-theme.theme-dracula"
+  ]
+}
+```
+
+Enter the `<author>.<name>` into the extensions array and code-server will automatically install on start.
+
+### Example 2
+
+Configure VS Code's [settings.json](https://code.visualstudio.com/docs/getstarted/settings#_settingsjson) file:
+
+```tf
+module "airflow" {
+  source     = "registry.coder.com/modules/airflow/coder"
+  version    = "1.0.2"
+  agent_id   = coder_agent.example.id
+  extensions = ["dracula-theme.theme-dracula"]
+  settings = {
+    "workbench.colorTheme" = "Dracula"
+  }
+}
+```
+
+### Example 3
+
+Run code-server in the background, don't fetch it from GitHub:
+
+```tf
+module "airflow" {
+  source   = "registry.coder.com/modules/airflow/coder"
+  version  = "1.0.2"
+  agent_id = coder_agent.example.id
+  offline  = true
+}
+```

apache-airflow/main.tf

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+terraform {
+  required_version = ">= 1.0"
+
+  required_providers {
+    coder = {
+      source  = "coder/coder"
+      version = ">= 0.17"
+    }
+  }
+}
+
+# Add required variables for your modules and remove any unneeded variables
+variable "agent_id" {
+  type        = string
+  description = "The ID of a Coder agent."
+}
+
+variable "log_path" {
+  type        = string
+  description = "The path to log airflow to."
+  default     = "/tmp/airflow.log"
+}
+
+variable "port" {
+  type        = number
+  description = "The port to run airflow on."
+  default     = 8080
+}
+
+variable "share" {
+  type    = string
+  default = "owner"
+  validation {
+    condition     = var.share == "owner" || var.share == "authenticated" || var.share == "public"
+    error_message = "Incorrect value. Please set either 'owner', 'authenticated', or 'public'."
+  }
+}
+
+variable "order" {
+  type        = number
+  description = "The order determines the position of app in the UI presentation. The lowest order is shown first and apps with equal order are sorted by name (ascending order)."
+  default     = null
+}
+
+resource "coder_script" "airflow" {
+  agent_id     = var.agent_id
+  display_name = "airflow"
+  icon         = "/icon/apache-guacamole.svg"
+  script = templatefile("${path.module}/run.sh", {
+    LOG_PATH : var.log_path,
+    PORT : var.port
+  })
+  run_on_start = true
+}
+
+resource "coder_app" "airflow" {
+  agent_id     = var.agent_id
+  slug         = "airflow"
+  display_name = "airflow"
+  url          = "http://localhost:${var.port}"
+  icon         = "/icon/apache-guacamole.svg"
+  subdomain    = true
+  share        = var.share
+  order        = var.order
+}

apache-airflow/run.sh

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+#!/usr/bin/env sh
+
+BOLD='\033[0;1m'
+
+PATH=$PATH:~/.local/bin
+pip install --upgrade apache-airflow
+
+filename=~/airflow/airflow.db
+if ! [ -f $filename ] || ! [ -s $filename ]; then
+  airflow db init
+fi
+
+export AIRFLOW__CORE__LOAD_EXAMPLES=false
+
+airflow webserver > ${LOG_PATH} 2>&1 &
+
+airflow scheduler >> /tmp/airflow_scheduler.log 2>&1 &
+
+airflow users create -u admin -p admin -r Admin -e admin@admin.com -f Coder -l User