add uptime kuma image

apps/uptimekuma/Dockerfile

@@ -0,0 +1,46 @@
+FROM        --platform=$TARGETOS/$TARGETARCH node:18-alpine
+
+LABEL       author="Torsten Widmann" maintainer="info@goover.de"
+LABEL       org.opencontainers.image.source="https://github.com/gOOvER/own-pterodactyl-images"
+LABEL       org.opencontainers.image.licenses=MIT
+
+RUN         apk update \
+            && apk upgrade
+
+RUN         apk add --no-cache \
+                autoconf \
+                automake \
+                build-base \
+                ca-certificates\
+                curl \
+                bind-tools \
+				ffmpeg \
+                g++ \
+                git \
+                gpg \
+                gnupg \
+                iproute2 \
+                iputils-ping \
+                libtool \
+                python3 \
+                python3-dev \
+                sqlite \
+                tzdata \
+                zip \
+                libc6-compat
+
+# updating npm 
+RUN         npm install npm@latest -g
+
+# add cloudflare repo
+RUN         curl -L https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64 -o /usr/bin/cloudflared \
+            && chmod+x /usr/bin/cloudflared
+
+## Setup user and working directory
+RUN         adduser -D -h /home/container container -s /bin/bash container
+USER        container
+ENV         USER=container HOME=/home/container
+WORKDIR     /home/container
+
+COPY        ./entrypoint.sh /entrypoint.sh
+CMD         ["/bin/ash", "/entrypoint.sh"]