Hi everyone. I just finished migrating our container runtime security from self-hosted Falco to Sysdig Secure. The main driver was needing a managed service to reduce operational overhead. It was mostly smooth, but I hit a few unexpected snags.
The big one was the policy migration. Our custom Falco rules didn't translate directly. I had to rebuild them in Sysdig's policy engine. The structure is similar, but the syntax tripped me up.
Here's a Falco rule snippet I had to convert:
```yaml
- rule: Write Below Binary Dir
desc: Detect writes to binary directories.
condition: write_dir and fd_dirname in ("/bin", "/sbin", "/usr/bin")
output: "File below a binary directory opened for writing"
```
In Sysdig, I rebuilt it using their UI policy builder, which uses a different condition language. Not harder, just different. Took time to map all our rules.
Other pitfalls I noted:
* **Cost visibility:** The jump from open-source to per-host pricing was a shock. Our bill is higher than projected.
* **Data location:** Ensuring everything stayed in our preferred region required extra config steps.
* **Alert fatigue:** Default policies are noisy! We had to tune them down a lot post-migration.
Has anyone else made this switch? I'm curious how you handled the custom rule translation, especially for more complex conditions.