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Update docker/headscale/start.sh

This commit is contained in:
colin 2024-01-21 23:20:47 +00:00
parent a38bd75474
commit 709155b7bb
1 changed files with 35 additions and 6 deletions
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41
docker/headscale/start.sh
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@ -1,9 +1,21 @@
#!/bin/bash
replace_config_values() {
local config_template="/etc/headscale/config-example.yaml"
local config_output="/etc/headscale/config.yaml"
# Default values
local DEFAULT_SERVER_URL="http://127.0.0.1:8080"
local DEFAULT_LISTEN_ADDR="127.0.0.1:8080"
local DEFAULT_METRICS_LISTEN_ADDR="127.0.0.1:9090"
local DEFAULT_GRPC_LISTEN_ADDR="127.0.0.1:50443"
local DEFAULT_GRPC_ALLOW_INSECURE="false"
local DEFAULT_DB_TYPE="sqlite3"
local DEFAULT_DB_PATH="/var/lib/headscale/db.sqlite"
local DEFAULT_UNIX_SOCKET="/var/run/headscale/headscale.sock"
local DEFAULT_UNIX_SOCKET_PERMISSION="0770"
# Check if the output config file already exists
if [[ -f "$config_output" ]]; then
echo "$config_output already exists."
@ -16,13 +28,30 @@ replace_config_values() {
return 1
fi
# Read the template and replace variables
# Function to replace or use default value
replace_or_default() {
local var_name=$1
local default_value=$2
local line=$3
local var_value
eval var_value=\$$var_name
if [ -z "$var_value" ]; then
var_value=$default_value
fi
echo ${line/\$\{$var_name\}/$var_value}
}
# Read the template and replace variables with defaults if not set
while IFS= read -r line || [[ -n "$line" ]]; do
while [[ "$line" =~ \$\{([a-zA-Z_][a-zA-Z_0-9]*)\} ]]; do
var_name=${BASH_REMATCH[1]}
var_value=$(eval echo "\$$var_name")
line=${line//\$\{$var_name\}/$var_value}
done
line=$(replace_or_default "SERVER_URL" "$DEFAULT_SERVER_URL" "$line")
line=$(replace_or_default "LISTEN_ADDR" "$DEFAULT_LISTEN_ADDR" "$line")
line=$(replace_or_default "METRICS_LISTEN_ADDR" "$DEFAULT_METRICS_LISTEN_ADDR" "$line")
line=$(replace_or_default "GRPC_LISTEN_ADDR" "$DEFAULT_GRPC_LISTEN_ADDR" "$line")
line=$(replace_or_default "GRPC_ALLOW_INSECURE" "$DEFAULT_GRPC_ALLOW_INSECURE" "$line")
line=$(replace_or_default "DB_TYPE" "$DEFAULT_DB_TYPE" "$line")
line=$(replace_or_default "DB_PATH" "$DEFAULT_DB_PATH" "$line")
line=$(replace_or_default "UNIX_SOCKET" "$DEFAULT_UNIX_SOCKET" "$line")
line=$(replace_or_default "UNIX_SOCKET_PERMISSION" "$DEFAULT_UNIX_SOCKET_PERMISSION" "$line")
echo "$line"
done < "$config_template" > "$config_output"