Added Caddy v1.0.5 Docker Image

Signed-off-by: Teddysun <i@teddysun.com>

docker/caddy/Caddyfile

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+# The Caddyfile is an easy way to configure your Caddy web server.
+#
+# Unless the file starts with a global options block, the first
+# uncommented line is always the address of your site.
+#
+# To use your own domain name (with automatic HTTPS), first make
+# sure your domain's A/AAAA DNS records are properly pointed to
+# this machine's public IP, then replace the line below with your
+# domain name.
+:80
+
+# Set this path to your site's directory.
+root * /usr/share/caddy
+
+# Enable the static file server.
+file_server
+
+# Another common task is to set up a reverse proxy:
+# reverse_proxy localhost:8080
+
+# Or serve a PHP site through php-fpm:
+# php_fastcgi localhost:9000
+
+# Refer to the Caddy docs for more information:
+# https://caddyserver.com/docs/caddyfile

docker/caddy/Dockerfile

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+# Dockerfile for caddy v1.0.5 based alpine
+# Copyright (C) 2020 Teddysun <i@teddysun.com>
+# Reference URL:
+# https://github.com/caddyserver/caddy
+# https://github.com/caddyserver/forwardproxy
+
+FROM alpine:3.12
+LABEL maintainer="Teddysun <i@teddysun.com>"
+
+WORKDIR /root
+COPY caddy.sh /root/caddy.sh
+RUN set -ex \
+	&& mkdir -p /config/caddy /data/caddy /etc/caddy /usr/share/caddy \
+	&& apk add --no-cache tzdata ca-certificates mailcap \
+	&& chmod +x /root/caddy.sh \
+	&& /root/caddy.sh \
+	&& rm -fv /root/caddy.sh
+
+# set up nsswitch.conf for Go's "netgo" implementation
+# see: https://github.com/docker-library/golang/blob/1eb096131592bcbc90aa3b97471811c798a93573/1.14/alpine3.12/Dockerfile#L9
+RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf
+
+COPY Caddyfile /etc/caddy/Caddyfile
+COPY index.html /usr/share/caddy/index.html
+
+# See https://caddyserver.com/docs/conventions#file-locations for details
+ENV XDG_CONFIG_HOME /config
+ENV XDG_DATA_HOME /data
+
+VOLUME /etc/caddy
+VOLUME /config
+VOLUME /data
+
+EXPOSE 80
+EXPOSE 443
+EXPOSE 2015
+
+ENV TZ=Asia/Shanghai
+CMD [ "/usr/bin/caddy", "--config", "/etc/caddy/Caddyfile" ]

docker/caddy/Dockerfile.architecture

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+# Dockerfile for caddy v1.0.5 based alpine
+# Copyright (C) 2020 Teddysun <i@teddysun.com>
+# Reference URL:
+# https://github.com/caddyserver/caddy
+# https://github.com/caddyserver/forwardproxy
+
+FROM --platform=${TARGETPLATFORM} alpine:3.12
+LABEL maintainer="Teddysun <i@teddysun.com>"
+
+ARG TARGETPLATFORM
+WORKDIR /root
+COPY caddy.sh /root/caddy.sh
+RUN set -ex \
+	&& mkdir -p /config/caddy /data/caddy /etc/caddy /usr/share/caddy \
+	&& apk add --no-cache tzdata ca-certificates mailcap \
+	&& chmod +x /root/caddy.sh \
+	&& /root/caddy.sh "${TARGETPLATFORM}" \
+	&& rm -fv /root/caddy.sh
+
+# set up nsswitch.conf for Go's "netgo" implementation
+# see: https://github.com/docker-library/golang/blob/1eb096131592bcbc90aa3b97471811c798a93573/1.14/alpine3.12/Dockerfile#L9
+RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf
+
+COPY Caddyfile /etc/caddy/Caddyfile
+COPY index.html /usr/share/caddy/index.html
+
+# See https://caddyserver.com/docs/conventions#file-locations for details
+ENV XDG_CONFIG_HOME /config
+ENV XDG_DATA_HOME /data
+
+VOLUME /etc/caddy
+VOLUME /config
+VOLUME /data
+
+EXPOSE 80
+EXPOSE 443
+EXPOSE 2015
+
+ENV TZ=Asia/Shanghai
+CMD [ "/usr/bin/caddy", "--config", "/etc/caddy/Caddyfile" ]

docker/caddy/README.md

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+## Caddy Docker Image by Teddysun
+
+[Caddy][1] is a powerful, enterprise-ready, open source web server with automatic HTTPS written in Go.
+
+Docker images are built for quick deployment in various computing cloud providers.
+
+For more information on docker and containerization technologies, refer to [official document][2].
+
+## Prepare the host
+
+If you need to install docker by yourself, follow the [official installation guide][3].
+
+## Pull the image
+
+```bash
+$ docker pull teddysun/caddy
+```
+
+This pulls the version **v1.0.5** of Caddy.
+
+It can be found at [Docker Hub][4].
+
+## Start a container
+
+You **must create a configuration file**  `/etc/caddy/Caddyfile` in host at first:
+
+```
+$ mkdir -p /etc/caddy
+```
+
+A sample `Caddyfile` please visit [here](https://github.com/caddyserver/dist/blob/master/config/Caddyfile)
+
+Caddy requires write access to two locations: a [data directory](https://caddyserver.com/docs/conventions#data-directory), and a [configuration directory](https://caddyserver.com/docs/conventions#configuration-directory). 
+
+There is an example to override the default `Caddyfile`, you can mount a new one at `/etc/caddy/Caddyfile` like below:
+
+```bash
+$ docker run -d -p 80:80 --name caddy --restart=always -v /etc/caddy:/etc/caddy teddysun/caddy
+```
+
+[1]: https://caddyserver.com/
+[2]: https://docs.docker.com/
+[3]: https://docs.docker.com/install/
+[4]: https://hub.docker.com/r/teddysun/caddy/

docker/caddy/build_caddy_forwardproxy_v1.sh

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+#!/bin/sh
+#
+# This is a Shell script for build multi-architectures caddy binary file with forwardproxy plugin
+# 
+# Supported architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
+# 
+# Copyright (C) 2020 Teddysun <i@teddysun.com>
+#
+# Reference URL:
+# https://github.com/caddyserver/caddy
+# https://github.com/caddyserver/forwardproxy
+
+cur_dir="$(pwd)"
+
+COMMANDS=( git go )
+for CMD in "${COMMANDS[@]}"; do
+    if [ ! "$(command -v "${CMD}")" ]; then
+        echo "${CMD} is not installed, please install it and try again" && exit 1
+    fi
+done
+
+cd ${cur_dir}
+echo "git clone https://github.com/caddyserver/forwardproxy.git"
+git clone https://github.com/caddyserver/forwardproxy.git
+cd forwardproxy/cmd/caddy || exit 2
+go get -d -v
+
+LDFLAGS="-s -w"
+ARCHS=( 386 amd64 arm arm64 ppc64le s390x )
+ARMS=( 6 7 )
+
+for ARCH in ${ARCHS[@]}; do
+    if [ "${ARCH}" = "arm" ]; then
+        for V in ${ARMS[@]}; do
+            echo "Building caddy_linux_${ARCH}${V}"
+            env CGO_ENABLED=0 GOOS=linux GOARCH=${ARCH} GOARM=${V} go build -v -ldflags "${LDFLAGS}" -o ${cur_dir}/caddy_linux_${ARCH}${V}
+        done
+    else
+        echo "Building caddy_linux_${ARCH}"
+        env CGO_ENABLED=0 GOOS=linux GOARCH=${ARCH} go build -v -ldflags "${LDFLAGS}" -o ${cur_dir}/caddy_linux_${ARCH}
+    fi
+done
+
+chmod +x ${cur_dir}/caddy_*
+# clean up
+cd ${cur_dir} && rm -fr forwardproxy

docker/caddy/caddy.sh

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+#!/bin/sh
+#
+# This is a Shell script for caddy based alpine with Docker image
+# 
+# Copyright (C) 2019 - 2020 Teddysun <i@teddysun.com>
+#
+# Reference URL:
+# https://github.com/caddyserver/caddy
+# https://github.com/caddyserver/forwardproxy
+
+PLATFORM=$1
+if [ -z "$PLATFORM" ]; then
+    ARCH="amd64"
+else
+    case "$PLATFORM" in
+        linux/386)
+            ARCH="386"
+            ;;
+        linux/amd64)
+            ARCH="amd64"
+            ;;
+        linux/arm/v6)
+            ARCH="arm6"
+            ;;
+        linux/arm/v7)
+            ARCH="arm7"
+            ;;
+        linux/arm64|linux/arm64/v8)
+            ARCH="arm64"
+            ;;
+        linux/ppc64le)
+            ARCH="ppc64le"
+            ;;
+        linux/s390x)
+            ARCH="s390x"
+            ;;
+        *)
+            ARCH=""
+            ;;
+    esac
+fi
+[ -z "${ARCH}" ] && echo "Error: Not supported OS Architecture" && exit 1
+# Download binary file
+CADDY_FILE="caddy_linux_${ARCH}"
+
+echo "Downloading binary file: ${CADDY_FILE}"
+wget -O /usr/bin/caddy https://dl.lamp.sh/files/${CADDY_FILE} > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo "Error: Failed to download binary file: ${CADDY_FILE}" && exit 1
+fi
+echo "Download binary file: ${CADDY_FILE} completed"
+
+chmod +x /usr/bin/caddy
+/usr/bin/caddy version