Create a python openstack webserver example (pulumi#1004)

* Create a python openstack webserver example

Shows how to create an openstack instance
starting with image upload, addition of
security group rules, creating a keypari for
ssh access and a custom user data
script to run on the instance

* Use openstack and horizon in step description

README.md

@@ -51,6 +51,7 @@ $ git pull origin master
  - [Python](#python-3)
  - [Go](#go-3)
  - [C#](#c-3)
+- [Openstack](#openstack)
 - [Cloud](#cloud)
 - [DigitalOcean](#digitalocean)
 - [Multicloud](#multicloud)
@@ -292,6 +293,12 @@ Example | Description |
 --------- | --------- |
 [Guestbook](kubernetes-go-guestbook) | Build and deploy a simple, multi-tier web application using Kubernetes and Docker.
 
+## Openstack
+
+### Python
+
+[Web Server](openstack-py-webserver) | Deploy an Openstack instance and open port 8000.
+
 ## Cloud
 
 ### TypeScript

openstack-py-webserver/Pulumi.yaml

@@ -0,0 +1,6 @@
+name: pulum
+runtime:
+ name: python
+ options:
+ virtualenv: venv
+description: A minimal OpenStack Python Pulumi program

openstack-py-webserver/README.md

@@ -0,0 +1,71 @@
+[![Deploy](https://get.pulumi.com/new/button.svg)](https://app.pulumi.com/new)
+
+# Web Server Using Openstack
+
+
+## Prerequisites
+
+1. [Install Pulumi](https://www.pulumi.com/docs/get-started/install/)
+1. [Configure Pulumi for Openstack](https://www.pulumi.com/docs/intro/cloud-providers/openstack/setup/)
+1. [Configure Pulumi for Python](https://www.pulumi.com/docs/intro/languages/python/)
+
+## Deploying and running the program
+
+1. Create a new stack:
+
+ ```bash
+ $ pulumi stack init
+ ```
+
+2. Modify `__main__.py` to include your keypair and image
+
+3. Run `pulumi up` to preview and deploy changes:
+
+ ```bash
+ $ pulumi up
+ Previewing update (dev):
+ Type Name Plan
+ pulumi:pulumi:Stack pulum-dev
+ + ├─ openstack:images:Image fedora create
+ + ├─ openstack:compute:Keypair default create
+ + ├─ openstack:networking:SecGroupRule secgroupRule1 create
+ + ├─ openstack:networking:SecGroupRule secgroupRule2 create
+ + ├─ openstack:networking:SecGroupRule secgroupRule3 create
+ + └─ openstack:compute:Instance test_fedora create
+
+ Outputs:
+ ~ instance_ip: "192.168.0.243" => output<string>
+
+ Resources:
+ + 6 to create
+ 1 unchanged
+ Resources:
+ + 6 created
+ 1 unchanged
+
+ Duration: 38s
+
+ ```
+
+4. View the host name and IP address of the instance via `stack output`:
+
+ ```bash
+ $ pulumi stack output
+ Current stack outputs (1):
+ OUTPUT VALUE
+ instance_ip 192.168.0.243
+ ```
+
+5. Verify that the Openstack instance exists, by either using the Horizon dashboard or running `openstack server list`.
+ ```bash
+ $ openstack server list
+ +--------------------------------------+-------------+--------+-------------------------------------+--------------------------+----------+
+ | ID | Name | Status | Networks | Image | Flavor |
+ +--------------------------------------+-------------+--------+-------------------------------------+--------------------------+----------+
+ | 8bdf8a6d-ac53-4448-ae09-e2a08ad554a0 | test_fedora | ACTIVE | public=192.168.0.243, 2001:db8::36b | fedora | m1.small |
+ +--------------------------------------+-------------+--------+-------------------------------------+--------------------------+----------+
+ ```
+
+## Clean up
+
+To clean up resources, run `pulumi destroy` and answer the confirmation question at the prompt.

openstack-py-webserver/__main__.py

@@ -0,0 +1,80 @@
+"""An OpenStack Python Pulumi program"""
+
+import pulumi
+import pulumi_openstack as openstack
+
+
+fedora_image = openstack.images.Image(
+ "fedora",
+ name="fedora",
+ container_format="bare",
+ disk_format="qcow2",
+ image_source_url="https://ftp.plusline.net/fedora/linux/releases/34/Cloud/x86_64/images/Fedora-Cloud-Base-34-1.2.x86_64.qcow2",
+ visibility="public",
+)
+
+default_keypair = openstack.compute.keypair.Keypair(
+ "default",
+ name="default",
+ public_key="ssh-ed25519 <public key>",
+)
+
+secgroup_default = openstack.networking.get_sec_group(name="default")
+
+secgroup_rule_ssh = openstack.networking.SecGroupRule(
+ "secgroupRule1",
+ direction="ingress",
+ ethertype="IPv4",
+ port_range_max=22,
+ port_range_min=22,
+ protocol="tcp",
+ remote_ip_prefix="0.0.0.0/0",
+ description="Allow ssh",
+ security_group_id=secgroup_default.id,
+)
+
+secgroup_rule_python_server = openstack.networking.SecGroupRule(
+ "secgroupRule2",
+ direction="ingress",
+ ethertype="IPv4",
+ port_range_max=8000,
+ port_range_min=8000,
+ protocol="tcp",
+ remote_ip_prefix="0.0.0.0/0",
+ description="Allow python http server",
+ security_group_id=secgroup_default.id,
+)
+
+secgroup_rule_icmp = openstack.networking.SecGroupRule(
+ "secgroupRule3",
+ direction="ingress",
+ ethertype="IPv4",
+ protocol="icmp",
+ remote_ip_prefix="0.0.0.0/0",
+ description="Allow ping",
+ security_group_id=secgroup_default.id,
+)
+
+network_public = openstack.networking.get_network(name="public")
+
+user_data = """
+#!/bin/bash
+echo "Hello, World!" > index.html
+nohup python3 -m http.server &
+"""
+
+fedora = openstack.compute.Instance(
+ "test_fedora",
+ name="test_fedora",
+ flavor_name="m1.small",
+ image_id=fedora_image.id,
+ key_pair=default_keypair.id,
+ security_groups=["default"],
+ networks=[
+ openstack.compute.InstanceNetworkArgs(uuid=network_public.id),
+ ],
+ user_data=user_data,
+)
+
+# Export the IP of the instance
+pulumi.export("instance_ip", fedora.access_ip_v4)

openstack-py-webserver/requirements.txt

@@ -0,0 +1,2 @@
+pulumi>=3.0.0,<4.0.0
+pulumi-openstack>=3.0.0,<4.0.0