dynamic host volumes: expand demo

demo/hostvolume/check.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+set -xeuo pipefail
+
+nomad volume status -type=host -verbose
+nomad operator api /v1/nodes | jq '.[].HostVolumes'
+
+addr="$(nomad service info -json job | jq -r '.[0].Address'):8000"
+curl -sS "$addr/external/" | grep hi
+curl -sS "$addr/internal/" | grep hi
+
+echo '💚 looks good! 💚'

demo/hostvolume/e2e.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+set -xeuo pipefail
+
+./setup.sh
+./check.sh
+./teardown.sh

demo/hostvolume/external-plugin.volume.hcl

@@ -0,0 +1,22 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+name = "external-plugin"
+type = "host"
+# the executable named `example-plugin-mkfs` must be placed in the
+# -host-volume-plugin-dir (config: client.host_volume_plugin_dir)
+# or you will get an error creating the volume:
+#  * could not place volume "external-plugin": no node meets constraints
+# The default location is <data-dir>/host_volume_plugins
+plugin_id    = "example-plugin-mkfs"
+capacity_min = "50mb"
+capacity_max = "50mb"
+
+capability {
+  access_mode     = "single-node-writer"
+  attachment_mode = "file-system"
+}
+
+parameters {
+  a = "ayy"
+}

demo/hostvolume/host.volume.hcl → demo/hostvolume/internal-plugin.volume.hcl

@@ -1,16 +1,14 @@
 # Copyright (c) HashiCorp, Inc.
 # SPDX-License-Identifier: BUSL-1.1
-name         = "test"
-type         = "host"
-plugin_id    = "example-host-volume"
-capacity_min = "50mb"
-capacity_max = "50mb"
+
+name = "internal-plugin"
+type = "host"
+# this plugin is built into Nomad;
+# it simply creates a directory.
+plugin_id = "mkdir"
 
 capability {
   access_mode     = "single-node-writer"
   attachment_mode = "file-system"
 }
 
-parameters {
-  a = "ayy"
-}

demo/hostvolume/job.nomad.hcl

@@ -0,0 +1,48 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+job "job" {
+  group "g" {
+    task "t" {
+      driver = "docker"
+      config {
+        image   = "python:slim"
+        command = "bash"
+        args = ["-xc", <<-EOF
+          for dir in internal external; do
+            touch ${NOMAD_TASK_DIR}/$dir/hiii
+          done
+          python -m http.server -d ${NOMAD_TASK_DIR} --bind=::
+          EOF
+        ]
+        ports = ["http"]
+      }
+      volume_mount {
+        volume      = "int"
+        destination = "${NOMAD_TASK_DIR}/internal"
+      }
+      volume_mount {
+        volume      = "ext"
+        destination = "${NOMAD_TASK_DIR}/external"
+      }
+    }
+    volume "int" {
+      type   = "host"
+      source = "internal-plugin"
+    }
+    volume "ext" {
+      type   = "host"
+      source = "external-plugin"
+    }
+    network {
+      port "http" {
+        static = 8000
+      }
+    }
+    service {
+      name     = "job"
+      port     = "http"
+      provider = "nomad"
+    }
+  }
+}

demo/hostvolume/setup.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+set -xeuo pipefail
+
+nomad volume create external-plugin.volume.hcl
+nomad volume create internal-plugin.volume.hcl
+
+nomad job run job.nomad.hcl
+
+nomad volume status -type=host -verbose
+nomad operator api /v1/nodes | jq '.[].HostVolumes'
+

demo/hostvolume/teardown.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: BUSL-1.1
+
+set -xeuo pipefail
+
+nomad job stop job || true
+
+for _ in {1..5}; do
+  sleep 3
+  ids="$(nomad volume status -type=host -verbose | awk '/ternal-plugin/ {print$1}')"
+  test -z "$ids" && break
+  for id in $ids; do 
+    nomad volume delete -type=host "$id" || continue
+  done
+done
+