|
| 1 | +terraform { |
| 2 | + required_providers { |
| 3 | + coder = { |
| 4 | + source = "coder/coder" |
| 5 | + } |
| 6 | + kubernetes = { |
| 7 | + source = "hashicorp/kubernetes" |
| 8 | + } |
| 9 | + } |
| 10 | +} |
| 11 | + |
| 12 | +provider "coder" { |
| 13 | +} |
| 14 | + |
| 15 | +variable "use_kubeconfig" { |
| 16 | + type = bool |
| 17 | + description = <<-EOF |
| 18 | + Use host kubeconfig? (true/false) |
| 19 | +
|
| 20 | + Set this to false if the Coder host is itself running as a Pod on the same |
| 21 | + Kubernetes cluster as you are deploying workspaces to. |
| 22 | +
|
| 23 | + Set this to true if the Coder host is running outside the Kubernetes cluster |
| 24 | + for workspaces. A valid "~/.kube/config" must be present on the Coder host. |
| 25 | + EOF |
| 26 | + default = false |
| 27 | +} |
| 28 | + |
| 29 | +variable "namespace" { |
| 30 | + type = string |
| 31 | + description = "The Kubernetes namespace to create workspaces in (must exist prior to creating workspaces). If the Coder host is itself running as a Pod on the same Kubernetes cluster as you are deploying workspaces to, set this to the same namespace." |
| 32 | +} |
| 33 | + |
| 34 | +data "coder_parameter" "cpu" { |
| 35 | + name = "cpu" |
| 36 | + display_name = "CPU" |
| 37 | + description = "The number of CPU cores" |
| 38 | + default = "2" |
| 39 | + icon = "/icon/memory.svg" |
| 40 | + mutable = true |
| 41 | + option { |
| 42 | + name = "2 Cores" |
| 43 | + value = "2" |
| 44 | + } |
| 45 | + option { |
| 46 | + name = "4 Cores" |
| 47 | + value = "4" |
| 48 | + } |
| 49 | + option { |
| 50 | + name = "6 Cores" |
| 51 | + value = "6" |
| 52 | + } |
| 53 | + option { |
| 54 | + name = "8 Cores" |
| 55 | + value = "8" |
| 56 | + } |
| 57 | +} |
| 58 | + |
| 59 | +data "coder_parameter" "memory" { |
| 60 | + name = "memory" |
| 61 | + display_name = "Memory" |
| 62 | + description = "The amount of memory in GB" |
| 63 | + default = "2" |
| 64 | + icon = "/icon/memory.svg" |
| 65 | + mutable = true |
| 66 | + option { |
| 67 | + name = "2 GB" |
| 68 | + value = "2" |
| 69 | + } |
| 70 | + option { |
| 71 | + name = "4 GB" |
| 72 | + value = "4" |
| 73 | + } |
| 74 | + option { |
| 75 | + name = "6 GB" |
| 76 | + value = "6" |
| 77 | + } |
| 78 | + option { |
| 79 | + name = "8 GB" |
| 80 | + value = "8" |
| 81 | + } |
| 82 | +} |
| 83 | + |
| 84 | +data "coder_parameter" "home_disk_size" { |
| 85 | + name = "home_disk_size" |
| 86 | + display_name = "Home disk size" |
| 87 | + description = "The size of the home disk in GB" |
| 88 | + default = "10" |
| 89 | + type = "number" |
| 90 | + icon = "/emojis/1f4be.png" |
| 91 | + mutable = false |
| 92 | + validation { |
| 93 | + min = 1 |
| 94 | + max = 99999 |
| 95 | + } |
| 96 | +} |
| 97 | + |
| 98 | +variable "k8s_token" { |
| 99 | + type = string |
| 100 | + sensitive = true |
| 101 | + description = "Token for the coder-provisioner service account" |
| 102 | +} |
| 103 | + |
| 104 | + |
| 105 | +# Choose your repo |
| 106 | +data "coder_parameter" "repo_url" { |
| 107 | + name = "repo_url" |
| 108 | + display_name = "Repository URL" |
| 109 | +} |
| 110 | + |
| 111 | +module "git-clone" { |
| 112 | + source = "registry.coder.com/modules/git-clone/coder" |
| 113 | + agent_id = coder_agent.main.id |
| 114 | + url = data.coder_parameter.repo_url.value |
| 115 | +} |
| 116 | + |
| 117 | +# Handling private repositories |
| 118 | +data "coder_external_auth" "github" { |
| 119 | + id = "github-primary" |
| 120 | +} |
| 121 | + |
| 122 | +resource "coder_agent" "main" { |
| 123 | + os = "linux" |
| 124 | + arch = "amd64" |
| 125 | + env = { |
| 126 | + GITHUB_TOKEN = data.coder_external_auth.github.access_token |
| 127 | + } |
| 128 | +} |
| 129 | + |
| 130 | + |
| 131 | +provider "kubernetes" { |
| 132 | + host = "https://kubernetes.default.svc" # Internal cluster address |
| 133 | + token = var.k8s_token |
| 134 | + # Path to the cluster CA |
| 135 | + cluster_ca_certificate = file("/var/run/secrets/kubernetes.io/serviceaccount/ca.crt") |
| 136 | +} |
| 137 | + |
| 138 | +data "coder_workspace" "me" {} |
| 139 | +data "coder_workspace_owner" "me" {} |
| 140 | + |
| 141 | +resource "coder_agent" "main" { |
| 142 | + os = "linux" |
| 143 | + arch = "amd64" |
| 144 | + startup_script = <<-EOT |
| 145 | + set -e |
| 146 | +
|
| 147 | + # Install the latest code-server. |
| 148 | + # Append "--version x.x.x" to install a specific version of code-server. |
| 149 | + curl -fsSL https://code-server.dev/install.sh | sh -s -- --method=standalone --prefix=/tmp/code-server |
| 150 | +
|
| 151 | + # Start code-server in the background. |
| 152 | + /tmp/code-server/bin/code-server --auth none --port 13337 >/tmp/code-server.log 2>&1 & |
| 153 | + EOT |
| 154 | + |
| 155 | + # The following metadata blocks are optional. They are used to display |
| 156 | + # information about your workspace in the dashboard. You can remove them |
| 157 | + # if you don't want to display any information. |
| 158 | + # For basic resources, you can use the `coder stat` command. |
| 159 | + # If you need more control, you can write your own script. |
| 160 | + metadata { |
| 161 | + display_name = "CPU Usage" |
| 162 | + key = "0_cpu_usage" |
| 163 | + script = "coder stat cpu" |
| 164 | + interval = 10 |
| 165 | + timeout = 1 |
| 166 | + } |
| 167 | + |
| 168 | + metadata { |
| 169 | + display_name = "RAM Usage" |
| 170 | + key = "1_ram_usage" |
| 171 | + script = "coder stat mem" |
| 172 | + interval = 10 |
| 173 | + timeout = 1 |
| 174 | + } |
| 175 | + |
| 176 | + metadata { |
| 177 | + display_name = "Home Disk" |
| 178 | + key = "3_home_disk" |
| 179 | + script = "coder stat disk --path $${HOME}" |
| 180 | + interval = 60 |
| 181 | + timeout = 1 |
| 182 | + } |
| 183 | + |
| 184 | + metadata { |
| 185 | + display_name = "CPU Usage (Host)" |
| 186 | + key = "4_cpu_usage_host" |
| 187 | + script = "coder stat cpu --host" |
| 188 | + interval = 10 |
| 189 | + timeout = 1 |
| 190 | + } |
| 191 | + |
| 192 | + metadata { |
| 193 | + display_name = "Memory Usage (Host)" |
| 194 | + key = "5_mem_usage_host" |
| 195 | + script = "coder stat mem --host" |
| 196 | + interval = 10 |
| 197 | + timeout = 1 |
| 198 | + } |
| 199 | + |
| 200 | + metadata { |
| 201 | + display_name = "Load Average (Host)" |
| 202 | + key = "6_load_host" |
| 203 | + # get load avg scaled by number of cores |
| 204 | + script = <<EOT |
| 205 | + echo "`cat /proc/loadavg | awk '{ print $1 }'` `nproc`" | awk '{ printf "%0.2f", $1/$2 }' |
| 206 | + EOT |
| 207 | + interval = 60 |
| 208 | + timeout = 1 |
| 209 | + } |
| 210 | +} |
| 211 | + |
| 212 | +# code-server |
| 213 | +resource "coder_app" "code-server" { |
| 214 | + agent_id = coder_agent.main.id |
| 215 | + slug = "code-server" |
| 216 | + display_name = "code-server" |
| 217 | + icon = "/icon/code.svg" |
| 218 | + url = "http://localhost:13337?folder=/home/coder" |
| 219 | + subdomain = false |
| 220 | + share = "owner" |
| 221 | + |
| 222 | + healthcheck { |
| 223 | + url = "http://localhost:13337/healthz" |
| 224 | + interval = 3 |
| 225 | + threshold = 10 |
| 226 | + } |
| 227 | +} |
| 228 | + |
| 229 | +resource "kubernetes_persistent_volume_claim_v1" "home" { |
| 230 | + metadata { |
| 231 | + name = "coder-${data.coder_workspace.me.id}-home" |
| 232 | + namespace = var.namespace |
| 233 | + labels = { |
| 234 | + "app.kubernetes.io/name" = "coder-pvc" |
| 235 | + "app.kubernetes.io/instance" = "coder-pvc-${data.coder_workspace.me.id}" |
| 236 | + "app.kubernetes.io/part-of" = "coder" |
| 237 | + //Coder-specific labels. |
| 238 | + "com.coder.resource" = "true" |
| 239 | + "com.coder.workspace.id" = data.coder_workspace.me.id |
| 240 | + "com.coder.workspace.name" = data.coder_workspace.me.name |
| 241 | + "com.coder.user.id" = data.coder_workspace_owner.me.id |
| 242 | + "com.coder.user.username" = data.coder_workspace_owner.me.name |
| 243 | + } |
| 244 | + annotations = { |
| 245 | + "com.coder.user.email" = data.coder_workspace_owner.me.email |
| 246 | + } |
| 247 | + } |
| 248 | + wait_until_bound = false |
| 249 | + spec { |
| 250 | + access_modes = ["ReadWriteOnce"] |
| 251 | + resources { |
| 252 | + requests = { |
| 253 | + storage = "${data.coder_parameter.home_disk_size.value}Gi" |
| 254 | + } |
| 255 | + } |
| 256 | + } |
| 257 | +} |
| 258 | + |
| 259 | +resource "kubernetes_deployment_v1" "main" { |
| 260 | + count = data.coder_workspace.me.start_count |
| 261 | + depends_on = [ |
| 262 | + kubernetes_persistent_volume_claim_v1.home |
| 263 | + ] |
| 264 | + wait_for_rollout = false |
| 265 | + metadata { |
| 266 | + name = "coder-${data.coder_workspace.me.id}" |
| 267 | + namespace = var.namespace |
| 268 | + labels = { |
| 269 | + "app.kubernetes.io/name" = "coder-workspace" |
| 270 | + "app.kubernetes.io/instance" = "coder-workspace-${data.coder_workspace.me.id}" |
| 271 | + "app.kubernetes.io/part-of" = "coder" |
| 272 | + "com.coder.resource" = "true" |
| 273 | + "com.coder.workspace.id" = data.coder_workspace.me.id |
| 274 | + "com.coder.workspace.name" = data.coder_workspace.me.name |
| 275 | + "com.coder.user.id" = data.coder_workspace_owner.me.id |
| 276 | + "com.coder.user.username" = data.coder_workspace_owner.me.name |
| 277 | + } |
| 278 | + annotations = { |
| 279 | + "com.coder.user.email" = data.coder_workspace_owner.me.email |
| 280 | + } |
| 281 | + } |
| 282 | + |
| 283 | + spec { |
| 284 | + replicas = 1 |
| 285 | + selector { |
| 286 | + match_labels = { |
| 287 | + "app.kubernetes.io/name" = "coder-workspace" |
| 288 | + "app.kubernetes.io/instance" = "coder-workspace-${data.coder_workspace.me.id}" |
| 289 | + "app.kubernetes.io/part-of" = "coder" |
| 290 | + "com.coder.resource" = "true" |
| 291 | + "com.coder.workspace.id" = data.coder_workspace.me.id |
| 292 | + "com.coder.workspace.name" = data.coder_workspace.me.name |
| 293 | + "com.coder.user.id" = data.coder_workspace_owner.me.id |
| 294 | + "com.coder.user.username" = data.coder_workspace_owner.me.name |
| 295 | + } |
| 296 | + } |
| 297 | + strategy { |
| 298 | + type = "Recreate" |
| 299 | + } |
| 300 | + |
| 301 | + template { |
| 302 | + metadata { |
| 303 | + labels = { |
| 304 | + "app.kubernetes.io/name" = "coder-workspace" |
| 305 | + "app.kubernetes.io/instance" = "coder-workspace-${data.coder_workspace.me.id}" |
| 306 | + "app.kubernetes.io/part-of" = "coder" |
| 307 | + "com.coder.resource" = "true" |
| 308 | + "com.coder.workspace.id" = data.coder_workspace.me.id |
| 309 | + "com.coder.workspace.name" = data.coder_workspace.me.name |
| 310 | + "com.coder.user.id" = data.coder_workspace_owner.me.id |
| 311 | + "com.coder.user.username" = data.coder_workspace_owner.me.name |
| 312 | + } |
| 313 | + } |
| 314 | + spec { |
| 315 | + security_context { |
| 316 | + run_as_user = 1000 |
| 317 | + fs_group = 1000 |
| 318 | + run_as_non_root = true |
| 319 | + } |
| 320 | + |
| 321 | + container { |
| 322 | + name = "dev" |
| 323 | + image = "codercom/enterprise-base:ubuntu" |
| 324 | + image_pull_policy = "Always" |
| 325 | + command = ["sh", "-c", coder_agent.main.init_script] |
| 326 | + security_context { |
| 327 | + run_as_user = "1000" |
| 328 | + } |
| 329 | + env { |
| 330 | + name = "CODER_AGENT_TOKEN" |
| 331 | + value = coder_agent.main.token |
| 332 | + } |
| 333 | + resources { |
| 334 | + requests = { |
| 335 | + "cpu" = "250m" |
| 336 | + "memory" = "512Mi" |
| 337 | + } |
| 338 | + limits = { |
| 339 | + "cpu" = "${data.coder_parameter.cpu.value}" |
| 340 | + "memory" = "${data.coder_parameter.memory.value}Gi" |
| 341 | + } |
| 342 | + } |
| 343 | + volume_mount { |
| 344 | + mount_path = "/home/coder" |
| 345 | + name = "home" |
| 346 | + read_only = false |
| 347 | + } |
| 348 | + } |
| 349 | + |
| 350 | + volume { |
| 351 | + name = "home" |
| 352 | + persistent_volume_claim { |
| 353 | + claim_name = kubernetes_persistent_volume_claim_v1.home.metadata.0.name |
| 354 | + read_only = false |
| 355 | + } |
| 356 | + } |
| 357 | + |
| 358 | + affinity { |
| 359 | + // This affinity attempts to spread out all workspace pods evenly across |
| 360 | + // nodes. |
| 361 | + pod_anti_affinity { |
| 362 | + preferred_during_scheduling_ignored_during_execution { |
| 363 | + weight = 1 |
| 364 | + pod_affinity_term { |
| 365 | + topology_key = "kubernetes.io/hostname" |
| 366 | + label_selector { |
| 367 | + match_expressions { |
| 368 | + key = "app.kubernetes.io/name" |
| 369 | + operator = "In" |
| 370 | + values = ["coder-workspace"] |
| 371 | + } |
| 372 | + } |
| 373 | + } |
| 374 | + } |
| 375 | + } |
| 376 | + } |
| 377 | + } |
| 378 | + } |
| 379 | + } |
| 380 | +} |
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