Add Dockerfile.

Dockerfile

@@ -0,0 +1,61 @@
+# Build the build base environment
+FROM debian:sid as base
+COPY . /tmp/.build/sshwifty
+RUN set -ex && \
+    cd / && \
+    ls -l /tmp/.build/sshwifty && \
+    echo "res=0; for i in \$(seq 0 36); do \$@; res=\$?; [ \$res -eq 0 ] && exit \$res || sleep 10; done; exit \$res" > /try.sh && chmod +x /try.sh && \
+    echo "cpid=\"\"; ret=0; i=0; for c in \"\$@\"; do ( (((((eval \$c; echo \$? >&3) | sed \"s/^/|-(\$i) /\" >&4) 2>&1 | sed \"s/^/|-(\$i)!/\" >&2) 3>&1) | (read xs; exit \$xs))  4>&1) & ppid=\$!; cpid=\"\$cpid \$ppid\"; echo \"+ Child \$i (PID \$ppid): \$c ...\"; i=\$((i+1)); done; for c in \$cpid; do wait \$c; cret=\$?; [ \$cret -eq 0 ] && continue; echo \"* Child PID \$c has failed.\" >&2; ret=\$cret; done; exit \$ret" > /child.sh && chmod +x /child.sh && \
+    export PATH=$PATH:/ && \
+    echo "apt-get update && apt-get install npm golang-go git -y" > /install.sh && chmod +x /install.sh && \
+    ([ -z "$HTTP_PROXY" ] || (echo "Acquire::http::Proxy \"$HTTP_PROXY\";" >> /etc/apt/apt.conf)) && \
+    ([ -z "$HTTPS_PROXY" ] || (echo "Acquire::https::Proxy \"$HTTPS_PROXY\";" >> /etc/apt/apt.conf)) && \
+    try.sh install.sh && rm /install.sh
+
+# Build the base environment for application libraries
+FROM base as libbase
+RUN set -ex && \
+    cd / && \
+    export PATH=$PATH:/ && \
+    ([ -z "$HTTP_PROXY" ] || (git config --global http.proxy "$HTTP_PROXY" && npm config set proxy "$HTTP_PROXY")) && \
+    ([ -z "$HTTPS_PROXY" ] || (git config --global https.proxy "$HTTPS_PROXY" && npm config set https-proxy "$HTTPS_PROXY")) && \
+    child.sh \
+        "cd /tmp/.build/sshwifty && try.sh npm install" \
+        "cd /tmp/.build/sshwifty && try.sh go mod download"
+
+# Main building environment
+FROM libbase as builder
+RUN set -ex && \
+    cd / && \
+    export PATH=$PATH:/ && \
+    ([ -z "$HTTP_PROXY" ] || (git config --global http.proxy "$HTTP_PROXY" && npm config set proxy "$HTTP_PROXY")) && \
+    ([ -z "$HTTPS_PROXY" ] || (git config --global https.proxy "$HTTPS_PROXY" && npm config set https-proxy "$HTTPS_PROXY")) && \
+    (cd /tmp/.build/sshwifty && try.sh npm run build && mv ./sshwifty /)
+
+# Build the final image for running
+FROM alpine:latest
+ENV SSHWIFTY_HOSTNAME= \
+    SSHWIFTY_SHAREDKEY= \
+    SSHWIFTY_SOCKS5= \
+    SSHWIFTY_SOCKS5_USER= \
+    SSHWIFTY_SOCKS5_PASSWORD= \
+    SSHWIFTY_LISTENINTERFACE=0.0.0.0 \
+    SSHWIFTY_LISTENPORT=8182 \
+    SSHWIFTY_INITIALTIMEOUT=0 \
+    SSHWIFTY_READTIMEOUT=0 \
+    SSHWIFTY_WRITETIMEOUT=0 \
+    SSHWIFTY_HEARTBEATTIMEOUT=0 \
+    SSHWIFTY_READDELAY=0 \
+    SSHWIFTY_WRITEELAY=0 \
+    SSHWIFTY_TLSCERTIFICATEFILE= \
+    SSHWIFTY_TLSCERTIFICATEKEYFILE= \
+    SSHWIFTY_DOCKER_TLSCERT= \
+    SSHWIFTY_DOCKER_TLSCERTKEY=
+COPY --from=builder /sshwifty /
+RUN set -ex && \
+    adduser -D "sshwifty" && \
+    chmod +x /sshwifty && \
+    echo "#!/bin/sh" > /sshwifty.sh && echo >> /sshwifty.sh && echo "([ -z \"\$SSHWIFTY_DOCKER_TLSCERT\" ] || echo \"\$SSHWIFTY_DOCKER_TLSCERT\" > /cert); ([ -z \"\$SSHWIFTY_DOCKER_TLSCERTKEY\" ] || echo \"\$SSHWIFTY_DOCKER_TLSCERTKEY\" > /certkey); if [ -f \"/cert\" ] && [ -f \"/certkey\" ]; then su - sshwifty -c \"\$(export) && SSHWIFTY_TLSCERTIFICATEFILE=/cert SSHWIFTY_TLSCERTIFICATEKEYFILE=/certkey /sshwifty\"; else su - sshwifty -c \"\$(export) && /sshwifty\"; fi;" >> /sshwifty.sh && chmod +x /sshwifty.sh
+EXPOSE 8182
+ENTRYPOINT [ "/sshwifty.sh" ]
+CMD []

README.md

@@ -33,6 +33,23 @@ $ docker run --detach \
   niruix/sshwifty:latest
 ```
 
+If you want to use TLS (HTTPS) with the Docker image and don't want to setup
+volumes, you can use  `SSHWIFTY_DOCKER_TLSCERT` and `SSHWIFTY_DOCKER_TLSCERTKEY`
+environment variables when starting the container:
+
+```
+$ docker run --detach \
+  --restart=always \
+  --publish 8182:8182 \
+  --env SSHWIFTY_DOCKER_TLSCERT="$(cat /path/to/domain.crt)"
+  --env SSHWIFTY_DOCKER_TLSCERTKEY="$(cat /path/to/domain.key)"
+  --name sshwifty \
+  niruix/sshwifty:latest
+```
+
+`/path/to/domain.crt` and `/path/to/domain.key` must be valid TLS certificate
+and key file located on the machine which the `docker run` command is executed.
+
 [Docker]: https://www.docker.com
 
 ### Compile from source code (Recommanded if you're a developer)