zookeeper-operator.md

ZooKeeper Operator Template

다음의 파일은 main.tf 파일일니다.

terraform {
  required_providers {
    coder = {
      source = "coder/coder"
    }
    docker = {
      source = "kreuzwerker/docker"
    }
  }
}

locals {
  username = data.coder_workspace_owner.me.name
}

variable "docker_socket" {
  default     = ""
  description = "(Optional) Docker socket URI"
  type        = string
}

provider "docker" {
  # Defaulting to null if the variable is an empty string lets us have an optional variable without having to set our own default
  host = var.docker_socket != "" ? var.docker_socket : null
}

data "coder_provisioner" "me" {}
data "coder_workspace" "me" {}
data "coder_workspace_owner" "me" {}

resource "coder_agent" "main" {
  arch           = data.coder_provisioner.me.arch
  os             = "linux"
  startup_script = <<-EOT
    set -e

    # Prepare user home with default files on first start.
    if [ ! -f ~/.init_done ]; then
      cp -rT /etc/skel ~
      touch ~/.init_done
    fi

    # Add any commands that should be executed at workspace startup (e.g install requirements, start a program, etc) here
    sudo apt install -y build-essential curl git

    ########################################################################
    # Operator SDK 설치
    ########################################################################

    # Go 다운로드 및 압축 해제 (버전은 최신으로 조정 가능)
    wget https://go.dev/dl/go1.22.0.linux-amd64.tar.gz
    sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.22.0.linux-amd64.tar.gz

    # 환경 변수 설정 (~/.bashrc 끝에 추가)
    echo 'export PATH=$PATH:/usr/local/go/bin:$(go env GOPATH)/bin' >> ~/.bashrc
    source ~/.bashrc

    # 버전 확인
    go version    

    ########################################################################
    # Operator 개발 시 CRD 매니페스트 생성을 돕는 controller-gen과 kustomize
    ########################################################################

    # 플랫폼 및 아키텍처 설정
    # export ARCH=$(case $(uname -m) in x86_64) echo -n amd64 ;; aarch64) echo -n arm64 ;; *) echo -n $(uname -m) ;; esac)
    # export OS=$(uname | tr '[:upper:]' '[:lower:]')

    # 최신 버전 다운로드 (버전 변수 지정 가능, 예: v1.33.0)
    export OPERATOR_SDK_DL_URL=
    curl -LO https://github.com/operator-framework/operator-sdk/releases/download/v1.33.0/operator-sdk_linux_amd64

    # 바이너리 권한 부여 및 이동
    chmod +x operator-sdk_linux_amd64
    sudo mv operator-sdk_linux_amd64 /usr/local/bin/operator-sdk

    # 설치 확인
    operator-sdk version    
    
    # controller-gen 설치
    go install sigs.k8s.io/controller-tools/cmd/controller-gen@latest

    # kustomize 설치
    curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
    sudo mv kustomize /usr/local/bin/
  EOT

  # These environment variables allow you to make Git commits right away after creating a
  # workspace. Note that they take precedence over configuration defined in ~/.gitconfig!
  # You can remove this block if you'd prefer to configure Git manually or using
  # dotfiles. (see docs/dotfiles.md)
  env = {
    GIT_AUTHOR_NAME     = coalesce(data.coder_workspace_owner.me.full_name, data.coder_workspace_owner.me.name)
    GIT_AUTHOR_EMAIL    = "${data.coder_workspace_owner.me.email}"
    GIT_COMMITTER_NAME  = coalesce(data.coder_workspace_owner.me.full_name, data.coder_workspace_owner.me.name)
    GIT_COMMITTER_EMAIL = "${data.coder_workspace_owner.me.email}"
  }

  # The following metadata blocks are optional. They are used to display
  # information about your workspace in the dashboard. You can remove them
  # if you don't want to display any information.
  # For basic resources, you can use the `coder stat` command.
  # If you need more control, you can write your own script.
  metadata {
    display_name = "CPU Usage"
    key          = "0_cpu_usage"
    script       = "coder stat cpu"
    interval     = 10
    timeout      = 1
  }

  metadata {
    display_name = "RAM Usage"
    key          = "1_ram_usage"
    script       = "coder stat mem"
    interval     = 10
    timeout      = 1
  }

  metadata {
    display_name = "Home Disk"
    key          = "3_home_disk"
    script       = "coder stat disk --path $${HOME}"
    interval     = 60
    timeout      = 1
  }

  metadata {
    display_name = "CPU Usage (Host)"
    key          = "4_cpu_usage_host"
    script       = "coder stat cpu --host"
    interval     = 10
    timeout      = 1
  }

  metadata {
    display_name = "Memory Usage (Host)"
    key          = "5_mem_usage_host"
    script       = "coder stat mem --host"
    interval     = 10
    timeout      = 1
  }

  metadata {
    display_name = "Load Average (Host)"
    key          = "6_load_host"
    # get load avg scaled by number of cores
    script   = <<EOT
      echo "`cat /proc/loadavg | awk '{ print $1 }'` `nproc`" | awk '{ printf "%0.2f", $1/$2 }'
    EOT
    interval = 60
    timeout  = 1
  }

  metadata {
    display_name = "Swap Usage (Host)"
    key          = "7_swap_host"
    script       = <<EOT
      free -b | awk '/^Swap/ { printf("%.1f/%.1f", $3/1024.0/1024.0/1024.0, $2/1024.0/1024.0/1024.0) }'
    EOT
    interval     = 10
    timeout      = 1
  }
}

# See https://registry.coder.com/modules/coder/code-server
module "code-server" {
  count  = data.coder_workspace.me.start_count
  source = "registry.coder.com/coder/code-server/coder"

  # This ensures that the latest non-breaking version of the module gets downloaded, you can also pin the module version to prevent breaking changes in production.
  version = "~> 1.0"

  agent_id = coder_agent.main.id
  order    = 1
}

# See https://registry.coder.com/modules/coder/jetbrains
module "jetbrains" {
  count      = data.coder_workspace.me.start_count
  source     = "registry.coder.com/coder/jetbrains/coder"
  version    = "~> 1.1"
  agent_id   = coder_agent.main.id
  agent_name = "main"
  folder     = "/home/coder"
  tooltip    = "You need to [install JetBrains Toolbox](https://coder.com/docs/user-guides/workspace-access/jetbrains/toolbox) to use this app."
}

resource "docker_volume" "home_volume" {
  name = "coder-${data.coder_workspace.me.id}-home"
  # Protect the volume from being deleted due to changes in attributes.
  lifecycle {
    ignore_changes = all
  }
  # Add labels in Docker to keep track of orphan resources.
  labels {
    label = "coder.owner"
    value = data.coder_workspace_owner.me.name
  }
  labels {
    label = "coder.owner_id"
    value = data.coder_workspace_owner.me.id
  }
  labels {
    label = "coder.workspace_id"
    value = data.coder_workspace.me.id
  }
  # This field becomes outdated if the workspace is renamed but can
  # be useful for debugging or cleaning out dangling volumes.
  labels {
    label = "coder.workspace_name_at_creation"
    value = data.coder_workspace.me.name
  }
}

resource "docker_container" "workspace" {
  count = data.coder_workspace.me.start_count
  image = "codercom/enterprise-base:ubuntu"
  # Uses lower() to avoid Docker restriction on container names.
  name = "coder-${data.coder_workspace_owner.me.name}-${lower(data.coder_workspace.me.name)}"
  # Hostname makes the shell more user friendly: coder@my-workspace:~$
  hostname = data.coder_workspace.me.name
  # Use the docker gateway if the access URL is 127.0.0.1
  entrypoint = ["sh", "-c", replace(coder_agent.main.init_script, "/localhost|127\\.0\\.0\\.1/", "host.docker.internal")]
  env        = ["CODER_AGENT_TOKEN=${coder_agent.main.token}"]
  host {
    host = "host.docker.internal"
    ip   = "host-gateway"
  }
  volumes {
    container_path = "/home/coder"
    volume_name    = docker_volume.home_volume.name
    read_only      = false
  }

  # Add labels in Docker to keep track of orphan resources.
  labels {
    label = "coder.owner"
    value = data.coder_workspace_owner.me.name
  }
  labels {
    label = "coder.owner_id"
    value = data.coder_workspace_owner.me.id
  }
  labels {
    label = "coder.workspace_id"
    value = data.coder_workspace.me.id
  }
  labels {
    label = "coder.workspace_name"
    value = data.coder_workspace.me.name
  }
}