Certificate Tower checks if your TLS certificates have expired and prints out warnings/errors. Use with Bitbar.
Prerequisites: Go 1.8 or newer
Get and build with go get -u github.com/thomersch/certificate-tower. The binary will be in $GOPATH/bin/certificate-tower. If you haven't specified a GOPATH before, it will default to $HOME/go.
Place a text file in ~/.certificate-tower-hosts with one host name per line, e.g.
example.com
foobar.example.com
The path to the hosts file can be overridden by setting the CERTTOWERHOSTS environment variable.