Coder Remote Development Platform

Developer → VS Code / Browser → Coder Workspace (K8s pod / VM)
                                    ├── Code (git clone)
                                    ├── Runtime (Node 20, Go 1.22)
                                    ├── Database (local Postgres)
                                    ├── Tools (kubectl, terraform)
                                    └── Env vars (from Vault)

helm install coder coder-v2/coder \
  --namespace coder --create-namespace \
  --set coder.accessURL=https://coder.myorg.com

# templates/backend/main.tf
terraform {
  required_providers {
    coder = { source = "coder/coder" }
    kubernetes = { source = "hashicorp/kubernetes" }
  }
}

data "coder_workspace" "me" {}

resource "kubernetes_pod" "workspace" {
  metadata {
    name      = "coder-${data.coder_workspace.me.owner}-${data.coder_workspace.me.name}"
    namespace = "coder-workspaces"
  }

  spec {
    container {
      name  = "dev"
      image = "myorg/dev-image:latest"
      command = ["sh", "-c", "sleep infinity"]

      resources {
        requests = {
          cpu    = "2"
          memory = "4Gi"
        }
        limits = {
          cpu    = "4"
          memory = "8Gi"
        }
      }

      volume_mount {
        name       = "home"
        mount_path = "/home/coder"
      }
    }

    volume {
      name = "home"
      persistent_volume_claim {
        claim_name = kubernetes_persistent_volume_claim.home.metadata[0].name
      }
    }
  }
}

resource "kubernetes_persistent_volume_claim" "home" {
  metadata {
    name      = "coder-${data.coder_workspace.me.owner}-home"
    namespace = "coder-workspaces"
  }
  spec {
    access_modes = ["ReadWriteOnce"]
    resources {
      requests = { storage = "20Gi" }
    }
  }
}

resource "coder_agent" "main" {
  os   = "linux"
  arch = "amd64"
  dir  = "/home/coder"

  startup_script = <<-EOF
    git clone https://github.com/myorg/order-api /home/coder/order-api || true
    cd /home/coder/order-api && npm install
  EOF
}

# dev-image/Dockerfile
FROM ubuntu:22.04

# Languages
RUN apt-get update && apt-get install -y \
    nodejs npm python3 python3-pip golang-go

# Tools
RUN apt-get install -y \
    git curl wget vim \
    kubectl helm terraform \
    docker.io postgresql-client redis-tools

# VS Code Server (for browser IDE)
RUN curl -fsSL https://code-server.dev/install.sh | sh

# Non-root user
RUN useradd -m -s /bin/bash coder
USER coder
WORKDIR /home/coder

# Install Coder CLI
curl -fsSL https://coder.com/install.sh | sh

# Login
coder login https://coder.myorg.com

# Create workspace
coder create my-workspace --template backend

# Open in VS Code (SSH tunnel)
coder open vscode my-workspace

resource "coder_workspace" "me" {
  # Stop workspace after 2 hours of inactivity
  ttl = 7200
}

data "coder_parameter" "cpu" {
  name    = "CPU cores"
  type    = "number"
  default = 2
  validation {
    min = 1
    max = 8
  }
}

data "coder_parameter" "dotfiles" {
  name    = "Dotfiles repo"
  type    = "string"
  default = ""
}