Automated updates

README.md

@@ -43,12 +43,6 @@ If you'd like to support this open-source project I'll appreciate any kind of [c
 ## Supported tags and respective `Dockerfile` links
 
 <!-- START_SUPPORTED_TAGS -->
-- [`almalinux`, `1-almalinux`, `1.21-almalinux`, `1.21.6-almalinux`, `1-almalinux8.5-20211112`, `1.21-almalinux8.5-20211112`, `1.21.6-almalinux8.5-20211112`](https://github.com/fabiocicerchia/nginx-lua/blob/main/nginx/1.21.6/almalinux/8.5-20211112/Dockerfile)
-- [`1`, `1.21`, `alpine`, `1.21.6`, `latest`, `1-alpine`, `1.21-alpine`, `1.21.6-alpine`, `1-alpine3.15.0`, `1.21-alpine3.15.0`, `1.21.6-alpine3.15.0`](https://github.com/fabiocicerchia/nginx-lua/blob/main/nginx/1.21.6/alpine/3.15.0/Dockerfile)
-- [`amazonlinux`, `1-amazonlinux`, `1.21-amazonlinux`, `1.21.6-amazonlinux`, `1-amazonlinux2.0.20220121.0`, `1.21-amazonlinux2.0.20220121.0`, `1.21.6-amazonlinux2.0.20220121.0`](https://github.com/fabiocicerchia/nginx-lua/blob/main/nginx/1.21.6/amazonlinux/2.0.20220121.0/Dockerfile)
-- [`debian`, `1-debian`, `1.21-debian`, `1-debian11.2`, `1.21.6-debian`, `1.21-debian11.2`, `1.21.6-debian11.2`](https://github.com/fabiocicerchia/nginx-lua/blob/main/nginx/1.21.6/debian/11.2/Dockerfile)
-- [`fedora`, `1-fedora`, `1-fedora35`, `1.21-fedora`, `1.21-fedora35`, `1.21.6-fedora`, `1.21.6-fedora35`](https://github.com/fabiocicerchia/nginx-lua/blob/main/nginx/1.21.6/fedora/35/Dockerfile)
-- [`ubuntu`, `1-ubuntu`, `1.21-ubuntu`, `1-ubuntu20.04`, `1.21.6-ubuntu`, `1.21-ubuntu20.04`, `1.21.6-ubuntu20.04`](https://github.com/fabiocicerchia/nginx-lua/blob/main/nginx/1.21.6/ubuntu/20.04/Dockerfile)
 <!-- END_SUPPORTED_TAGS -->
 
 **Note:** The full list of supported/unsupported tags can be found on [`docs/TAGS.md`](https://github.com/fabiocicerchia/nginx-lua/blob/main/docs/TAGS.md).

nginx/1.21.6/almalinux/8.5-20220306/10-listen-on-ipv6-by-default.sh

@@ -0,0 +1,61 @@
+#!/bin/sh
+# vim:sw=4:ts=4:et
+
+set -e
+
+ME=$(basename $0)
+DEFAULT_CONF_FILE="etc/nginx/conf.d/default.conf"
+
+# check if we have ipv6 available
+if [ ! -f "/proc/net/if_inet6" ]; then
+    echo >&3 "$ME: error: ipv6 not available"
+    exit 0
+fi
+
+if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
+    echo >&3 "$ME: error: /$DEFAULT_CONF_FILE is not a file or does not exist"
+    exit 0
+fi
+
+# check if the file can be modified, e.g. not on a r/o filesystem
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo >&3 "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)"; exit 0; }
+
+# check if the file is already modified, e.g. on a container restart
+grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
+
+if [ -f "/etc/os-release" ]; then
+    . /etc/os-release
+else
+    echo >&3 "$ME: error: can not guess the operating system"
+    exit 0
+fi
+
+echo >&3 "$ME: Getting the checksum of /$DEFAULT_CONF_FILE"
+
+#case "$ID" in
+#    "debian")
+#        CHECKSUM=$(dpkg-query --show --showformat='${Conffiles}\n' nginx | grep $DEFAULT_CONF_FILE | cut -d' ' -f 3)
+#        echo "$CHECKSUM  /$DEFAULT_CONF_FILE" | md5sum -c - >/dev/null 2>&1 || {
+#            echo >&3 "$ME: error: /$DEFAULT_CONF_FILE differs from the packaged version"
+#            exit 0
+#        }
+#        ;;
+#    "alpine")
+#        CHECKSUM=$(apk manifest nginx 2>/dev/null| grep $DEFAULT_CONF_FILE | cut -d' ' -f 1 | cut -d ':' -f 2)
+#        echo "$CHECKSUM  /$DEFAULT_CONF_FILE" | sha1sum -c - >/dev/null 2>&1 || {
+#            echo >&3 "$ME: error: /$DEFAULT_CONF_FILE differs from the packages version"
+#            exit 0
+#        }
+#        ;;
+#    *)
+#        echo >&3 "$ME: error: Unsupported distribution"
+#        exit 0
+#        ;;
+#esac
+
+# enable ipv6 on default.conf listen sockets
+sed -i -E 's,listen       80;,listen       80;\n    listen  [::]:80;,' /$DEFAULT_CONF_FILE
+
+echo >&3 "$ME: Enabled listen on IPv6 in /$DEFAULT_CONF_FILE"
+
+exit 0

nginx/1.21.6/almalinux/8.5-20220306/20-envsubst-on-templates.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+set -e
+
+ME=$(basename $0)
+
+auto_envsubst() {
+  local template_dir="${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 template defined_envs relative_path output_path subdir
+  defined_envs=$(printf '${%s} ' $(env | cut -d= -f1))
+  [ -d "$template_dir" ] || return 0
+  if [ ! -w "$output_dir" ]; then
+    echo >&3 "$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"
+    echo >&3 "$ME: Running envsubst on $template to $output_path"
+    envsubst "$defined_envs" < "$template" > "$output_path"
+  done
+}
+
+auto_envsubst
+
+exit 0