Using a virtual PTP hardware clock with the ptp_kvm driver and chrony is an easy solution for keeping time on guest machines synchronized to their host. Ideally the host is already keeping accurate time by tracking a set of NTP servers, but it is still probably a good idea to still add some network NTP peers on guests as well. (more…)
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- I refreshed my personal comparison of small virtual server pricing in Finland and Europe for August 2026. This is not a pricing survey of any kind — just the options I keep an eye on for my own use — but this time Claude Code did the legwork, so the comparison covers more than last year. Thank you, Claude. (more…)
18.9.22
Virtual PTP hardware clock on KVM guests
18.4.22
Refreshing old Terraform state
If you find yourself with an old Terraform state file (say from v0.11) and you need to run terraform plan to check things out, you’ll need to make some adjustments:
- Add a
terraformblock withrequired_providersto provide thesourcefor the provider. - Remove the
versionstatement from theproviderblock. (You will want to move it to the provider in therequired_providersblock.) - Adjust any other syntax changes that result in errors (
terraform plan):list()→tolist([])type = "string"→type = string- Possibly many others…
- Replace the provider in the existing ancient state file.
- Refresh the providers (
terraform init). - Plan away! (more…)