Getting a static IP address with Lightsail

[davidemyers]

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As of 2021-12-14 the instructions below no longer apply. Algo now assigns a static IP address automatically due to PR #14337.

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As discussed in #14124 Algo is unable to assign a static IP address when creating a new Lightsail instance. One way to get around this is to make Algo pause after creating the new instance so that you can manually assign a static IP address from the web interface. Here is a more detailed explanation of how to do this.

1. Download a copy of Algo using the git clone method.

2. Save the following patch to a file named, for example, lightsail.patch:

diff --git a/library/lightsail.py b/library/lightsail.py
index 99e49ac..05129ff 100644
--- a/library/lightsail.py
+++ b/library/lightsail.py
@@ -264,6 +264,7 @@ def create_instance(module, client, instance_name):
         except botocore.exceptions.ClientError as e:
             module.fail_json(msg='Unable to create instance {0}, error: {1}'.format(instance_name, e))

+        time.sleep(120)
         inst = _find_instance_info(client, instance_name)

         # Wait for instance to become running

3. From the Algo directory apply the patch:

git apply lightsail.patch

4. Review the Lightsail documentation for how to assign a static IP address.

5. Log in to the Lightsail Home screen in your browser.

6. Run ./algo and watch for the new instance to appear in your browser. Once the instance has been created, assign it a static IP address.

7. After a delay Algo will resume and will use the static IP address.

When you are done with the instance make sure you delete both the instance and the static IP address.

Credit goes to @Majdesber for suggesting this approach in #884.