install.fairie/home/dot_local/bin/post-installx/executable_post-cloudflared.sh
2024-05-05 04:05:33 +00:00

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#!/usr/bin/env bash
# @file Cloudflared Configuration
# @brief Applies cloudflared configuration, connects to Argo tunnel with managed configuration, and enables it on system start
{{- $registrationToken := "" }}
{{- if and (stat (joinPath .host.home ".config" "age" "chezmoi.txt")) (stat (joinPath .chezmoi.sourceDir ".chezmoitemplates" "cloudflared" .host.hostname)) -}}
{{- $registrationToken = (includeTemplate (print "cloudflared/" .host.hostname) | decrypt) -}}
{{- end }}
### Set up CloudFlare tunnels
if command -v cloudflared > /dev/null && [ -d "$HOME/.local/etc/cloudflared" ]; then
# Show warning message about ~/.cloudflared already existing
if [ -d "$HOME/.cloudflared" ]; then
logg warn '~/.cloudflared is already in the home directory - to ensure proper deployment, remove previous tunnel configuration folders'
fi
### Ensure /usr/local/etc/cloudflared exists
if [ -d /usr/local/etc/cloudflared ]; then
logg info 'Creating folder /usr/local/etc/cloudflared'
sudo mkdir -p /usr/local/etc/cloudflared
fi
# Copy over configuration files
logg info 'Ensuring /usr/local/etc/cloudflared exists' && sudo mkdir -p /usr/local/etc/cloudflared
logg info 'Copying over configuration files from ~/.local/etc/cloudflared to /usr/local/etc/cloudflared'
sudo cp -f "$HOME/.local/etc/cloudflared/cert.pem" /usr/local/etc/cloudflared/cert.pem
sudo cp -f "$HOME/.local/etc/cloudflared/config.yml" /usr/local/etc/cloudflared/config.yml
### Register tunnel (if not already registered)
if sudo cloudflared tunnel list | grep "host-{{ .host.hostname }}" > /dev/null; then
logg info 'CloudFlare tunnel is already registered'
else
logg info 'Creating a CloudFlare tunnel to this host'
sudo cloudflared tunnel create "host-{{ .host.hostname }}"
fi
TUNNEL_ID="$(sudo cloudflared tunnel list | grep 'host-{{ .host.hostname }}' | sed 's/ .*//')"
logg info "Tunnel ID: $TUNNEL_ID"
if [ -f "/usr/local/etc/cloudflared/${TUNNEL_ID}.json" ]; then
logg info 'Symlinking tunnel configuration to /usr/local/etc/cloudflared/credentials.json'
rm -f /usr/local/etc/cloudflared/credentials.json
sudo ln -s "/usr/local/etc/cloudflared/${TUNNEL_ID}.json" /usr/local/etc/cloudflared/credentials.json
else
logg info 'Handling case where the tunnel registration is not present in /usr/local/etc/cloudflared'
{{ if eq $registrationToken "" -}}
logg warn 'Registration token is unavailable - you might have to delete the pre-existing tunnel or set up secrets properly'
{{- else -}}
logg info 'Registration token retrieved from encrypted blob stored at home/.chezmoitemplates/cloudflared/{{ .host.hostname }}'
{{ if eq (substr 0 1 $registrationToken) "{" -}}
logg info 'Registration token stored in credential file form'
echo -n '{{ $registrationToken }}' | sudo tee /usr/local/etc/cloudflared/credentials.json > /dev/null
{{ else }}
logg info 'Registration token is in token form - it will be used in conjunction with sudo cloudflared service install'
{{- end }}
{{- end }}
fi
### Set up service
if [ -d /Applications ] && [ -d /System ]; then
# System is macOS
if [ -f /Library/LaunchDaemons/com.cloudflare.cloudflared.plist ]; then
logg info 'cloudflared service is already installed'
else
logg info 'Running sudo cloudflared service install'
sudo cloudflared service install{{ if and (ne $registrationToken "") (eq (substr 0 1 $registrationToken) "{") -}} {{ $registrationToken }}{{ end }}
fi
logg info 'Ensuring cloudflared service is installed'
sudo launchctl start com.cloudflare.cloudflared
elif [ -f /etc/os-release ]; then
# System is Linux
if systemctl --all --type service | grep -q "cloudflared" > /dev/null; then
logg info 'cloudflared service is already available as a service'
else
logg info 'Running sudo cloudflared service install'
sudo cloudflared service install{{ if and (ne $registrationToken "") (eq (substr 0 1 $registrationToken) "{") -}} {{ $registrationToken }}{{ end }}
fi
logg info 'Ensuring cloudflared service is started'
sudo systemctl start cloudflared
logg info 'Enabling cloudflared as a boot systemctl service'
sudo systemctl enable cloudflared
else
# System is Windows
cloudflared service install
mkdir C:\Windows\System32\config\systemprofile\.cloudflared
# Copy same cert.pem as being used above
# copy C:\Users\%USERNAME%\.cloudflared\cert.pem C:\Windows\System32\config\systemprofile\.cloudflared\cert.pem
# https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/tunnel-guide/local/as-a-service/windows/
fi
else
logg info 'cloudflared was not installed so CloudFlare Tunnels cannot be enabled. (Or the ~/.local/etc/cloudflared folder is not present)'
fi