Blender Scripting Lesson of the Week: Cylinders

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by Lisa

Quick script for creating a cylinder using bpy

import bpy

# Clear all existing objects
for obj in list(bpy.data.objects):
    bpy.data.objects.remove(obj, do_unlink=True)

# Set Units
scene = bpy.context.scene
scene.unit_settings.system = 'METRIC'
scene.unit_settings.scale_length = 0.001  # 1 BU = 1 mm

# Create cylinder
bpy.ops.mesh.primitive_cylinder_add(
    vertices=32, radius=10.0, depth=20.0,
    end_fill_type='NGON', calc_uvs=True,
    enter_editmode=False, align='WORLD',
    location=(0.0, 0.0, -2.0), rotation=(0.0, 0.0, 0.0),
    scale=(1, 1, 1)
)

# Name cylinder
obj = bpy.context.active_object
obj.name = "MyCylinder"

# Frame Selected 
for area in bpy.context.window.screen.areas:
    if area.type == 'VIEW_3D':
        for region in area.regions:
            if region.type == 'WINDOW':
                with bpy.context.temp_override(area=area, region=region):
                    bpy.ops.view3d.view_selected(use_all_regions=False)
                break
        break

Sausage Egg McMuffins, quasi AIP

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by Lisa

Cassava flour rolls, vegan cheese, and ground pork with spices to somewhat mimic sausage.

Ingredients:

2 cups cassava flour
1 Tbsp baking powder
1 tsp salt
3 eggs
1/4 cup coconut oil
2 Tbsp maple syrup
2 tsp yeast
1 cup warm water

Combine water, maple syrup, and yeast. Allow to sit for about ten minutes until it is very frothy.
Mix dry ingredients, combine with wet ingredient, allow to rise for an hour. Shape into rolls and allow to rise for 30 minutes.
Bake at 350 for 25-30 minutes

Green Banana Hash

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by Lisa

I made green banana hash tonight to go with our pork chops and broccoli. Microwaved four green bananas for five minutes (cut off ends, cut along back to cut through the peel, then microwave). I let them sit about ten minutes to cool down, then removed the peel. Diced into small pieces and then smashed some to make really small pieces. Added a little salt, then sauteed in coconut oil until crispy. They’re really good – and with bright green bananas, they do a very good impression of potatoes.

Venafi Cert Issuance Fails after Windows 2022 Upgrade

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by Lisa

Certificate Issuance Fails

After requesting a certificate, the request immediately fails with the error:

Failed to post CSR with error: Unknown certificate profile type.

I think it is just a coincidence, but wanted to document the scenario in case it comes up again. The application makes web calls to a vendor API to issue certs. The API calls, after the upgrade, were failing.

In this scenario, a call was being made to {base_url}/api/ssl/v1/types, the connection failed. Since the list of valid certificate profiles could not be retrieved, the request failed saying the certificate profile was unknown.

GET https://hard.cert-manager.com/api/ssl/v1/types?organizationId=####

Looking at a debug trace, the following flow was observed:

  • Authentication headers sent: login=<REDACTED>, password=<REDACTED>, customerUri=<REDACTED>
  • Transport-level failure (no HTTP status returned on the failing attempt)
    • Symptoms: “Decrypt failed with error 0X90317” followed by “The underlying connection was closed: The connection was closed unexpectedly.”
    • Context: Revocation checks reported “revocation server was offline,” then the client proceeded; long idle/keep-alive reuse likely contributed to the close.

 

Connection reuse vs server keep-alive: Apache is advertising Keep-Alive: timeout=3. The .NET client is reusing long-idle TLS connections via the proxy; by the time it sends application data, the server/proxy has already closed the session, leading to “underlying connection was closed” errors.

Revocation checks through the proxy: The .NET trace shows “revocation server was offline” before proceeding. That extra handshake work plus proxy blocking CRL/OCSP can increase latency and contribute to idle reuse issues.

.NET SChannel quirks: Older HttpWebRequest/ServicePoint behaviors (Expect100-Continue, connection pooling) can interact poorly with short keep-alive servers/proxies.

Luckily, this is a .NET application, and you can create custom configuration files for .NET apps. In the file with the binary, look for a text file named BinaryName.exe.config

If none exists, create one. The following disables the proxy:

<?xml version=”1.0″ encoding=”utf-8″?>
<configuration>
<system.net>
<!– Turn off use of the system proxy for this app –>
<defaultProxy enabled=”true”>
<proxy usesystemdefault=”false” />
</defaultProxy>
</system.net>
</configuration>