I’m trying to set up Let’s Encrypt certificates on an ec2 instance for the first time and have run into an error which I cannot find a resolution for online. I’m using the official certbox nginx guide, and am at the step where I need to install the route53 dns plugin. However, when I run sudo snap install certbot-dns-route53, I get the following error:
error: cannot perform the following tasks:
- Run hook prepare-plug-plugin of snap “certbot” (run hook “prepare-plug-plugin”: error: error running snapctl: unknown command `unset’. Please specify one command of: get, restart, set, start or stop)
The only solution I can find online that mentions this issue says to update snap. But snap has already been updated. Anyone familiar enough with snap and certbot on amzn2 to know what I can do here?
A bit more information:
This is running on an ec2 instance running Amazon’s Linux 2 AMI (amzn2)
Output for snap --version:
snap 2.36.3-0.amzn2 snapd 2.36.3-0.amzn2 series 16 amzn 2 kernel 4.14.214-160.339.amzn2.x86_64
I have tried to update the core using the commands in the guide, sudo snap install core; sudo snap refresh core and it outputs:
snap “core” has no updates available
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Answer
I initially installed snap (since it wasn’t available simply via yum) following the instructions found here. If you’ve done that and found this question, uninstall it.
Either switch your instance to a different distro or follow the install guide offered by Amazon here. If you’re using nginx, you can simply replace the reference of python2-certbot-apache with python-certbot-nginx. I stopped following after certbot was installed.