79 lines
2.9 KiB
Bash
79 lines
2.9 KiB
Bash
|
#!/bin/sh
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
ME=$(basename "$0")
|
||
|
|
|
||
|
|
entrypoint_log() {
|
||
|
|
if [ -z "${NGINX_ENTRYPOINT_QUIET_LOGS:-}" ]; then
|
||
|
|
echo "$@"
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
add_stream_block() {
|
||
|
|
local conffile="/etc/nginx/nginx.conf"
|
||
|
|
|
||
|
|
if grep -q -E "\s*stream\s*\{" "$conffile"; then
|
||
|
|
entrypoint_log "$ME: $conffile contains a stream block; include $stream_output_dir/*.conf to enable stream templates"
|
||
|
|
else
|
||
|
|
# check if the file can be modified, e.g. not on a r/o filesystem
|
||
|
|
touch "$conffile" 2>/dev/null || { entrypoint_log "$ME: info: can not modify $conffile (read-only file system?)"; exit 0; }
|
||
|
|
entrypoint_log "$ME: Appending stream block to $conffile to include $stream_output_dir/*.conf"
|
||
|
|
cat << END >> "$conffile"
|
||
|
|
# added by "$ME" on "$(date)"
|
||
|
|
stream {
|
||
|
|
include $stream_output_dir/*.conf;
|
||
|
|
}
|
||
|
|
END
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
auto_envsubst() {
|
||
|
|
local template_dir="${NGINX_ENVSUBST_TEMPLATE_DIR:-/etc/nginx/templates}"
|
||
|
|
local suffix="${NGINX_ENVSUBST_TEMPLATE_SUFFIX:-.template}"
|
||
|
|
local output_dir="${NGINX_ENVSUBST_OUTPUT_DIR:-/etc/nginx/conf.d}"
|
||
|
|
local stream_suffix="${NGINX_ENVSUBST_STREAM_TEMPLATE_SUFFIX:-.stream-template}"
|
||
|
|
local stream_output_dir="${NGINX_ENVSUBST_STREAM_OUTPUT_DIR:-/etc/nginx/stream-conf.d}"
|
||
|
|
local filter="${NGINX_ENVSUBST_FILTER:-}"
|
||
|
|
|
||
|
|
local template defined_envs relative_path output_path subdir
|
||
|
|
defined_envs=$(printf '${%s} ' $(awk "END { for (name in ENVIRON) { print ( name ~ /${filter}/ ) ? name : \"\" } }" < /dev/null ))
|
||
|
|
[ -d "$template_dir" ] || return 0
|
||
|
|
if [ ! -w "$output_dir" ]; then
|
||
|
|
entrypoint_log "$ME: ERROR: $template_dir exists, but $output_dir is not writable"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
find "$template_dir" -follow -type f -name "*$suffix" -print | while read -r template; do
|
||
|
|
relative_path="${template#"$template_dir/"}"
|
||
|
|
output_path="$output_dir/${relative_path%"$suffix"}"
|
||
|
|
subdir=$(dirname "$relative_path")
|
||
|
|
# create a subdirectory where the template file exists
|
||
|
|
mkdir -p "$output_dir/$subdir"
|
||
|
|
entrypoint_log "$ME: Running envsubst on $template to $output_path"
|
||
|
|
envsubst "$defined_envs" < "$template" > "$output_path"
|
||
|
|
done
|
||
|
|
|
||
|
|
# Print the first file with the stream suffix, this will be false if there are none
|
||
|
|
if test -n "$(find "$template_dir" -name "*$stream_suffix" -print -quit)"; then
|
||
|
|
mkdir -p "$stream_output_dir"
|
||
|
|
if [ ! -w "$stream_output_dir" ]; then
|
||
|
|
entrypoint_log "$ME: ERROR: $template_dir exists, but $stream_output_dir is not writable"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
add_stream_block
|
||
|
|
find "$template_dir" -follow -type f -name "*$stream_suffix" -print | while read -r template; do
|
||
|
|
relative_path="${template#"$template_dir/"}"
|
||
|
|
output_path="$stream_output_dir/${relative_path%"$stream_suffix"}"
|
||
|
|
subdir=$(dirname "$relative_path")
|
||
|
|
# create a subdirectory where the template file exists
|
||
|
|
mkdir -p "$stream_output_dir/$subdir"
|
||
|
|
entrypoint_log "$ME: Running envsubst on $template to $output_path"
|
||
|
|
envsubst "$defined_envs" < "$template" > "$output_path"
|
||
|
|
done
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
auto_envsubst
|
||
|
|
|
||
|
|
exit 0
|