initial commit

.dockerignore

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+*
+
+!/root

Dockerfile

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+FROM alpine:3.13
+
+ENV OVERLAY_VERSION "v2.2.0.1"
+ENV OVERLAY_ARCH "amd64"
+ENV OVERLAY_RELEASE_URL "https://github.com/just-containers/s6-overlay/releases/download/${OVERLAY_VERSION}/s6-overlay-${OVERLAY_ARCH}-installer"
+
+WORKDIR /tmp
+RUN apk add --no-cache \
+    coreutils \
+    curl \
+    shadow \
+    tzdata \
+  && curl -L "$OVERLAY_RELEASE_URL" -o s6-install \
+  && chmod +x s6-install \
+  && ./s6-install / \
+  && apk del --no-cache curl \
+  && apk del --purge \
+  && rm -rf /tmp/*
+
+RUN groupadd abc \
+  && groupmod -g 1000 abc \
+  && useradd \
+    -u 1000 \
+    -g 1000 \
+    -d /config \
+    -s /bin/sh abc \
+  && usermod -G abc abc \
+  && mkdir -p /app /config /defaults
+
+COPY ./root/ /
+
+ENTRYPOINT [ "/init" ]

README.md

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+# s6-alpine
+
+alpine + [s6 overlay](https://skarnet.org/software/s6/overview.html)

root/etc/cont-init.d/10-adduser

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+#!/usr/bin/with-contenv sh
+
+PUID=${PUID:-1000}
+PGID=${PGID:-1000}
+
+groupmod -o -g "$PGID" abc
+usermod -o -u "$PUID" abc
+
+echo "
+-------------------------------------
+GID/UID
+-------------------------------------
+User uid:    $(id -u abc)
+User gid:    $(id -g abc)
+-------------------------------------
+"
+
+chown abc:abc /app
+chown abc:abc /config
+chown abc:abc /defaults

root/etc/cont-init.d/20-set-timezone

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+#!/usr/bin/with-contenv sh
+
+if [ $TZ ]; then
+    [ -f /usr/share/zoneinfo/$TZ ] && cp /usr/share/zoneinfo/$TZ /etc/localtime || echo "WARNING: $TZ is not a valid time zone."
+    [ -f /usr/share/zoneinfo/$TZ ] && echo "$TZ" >  /etc/timezone
+fi