From d5e6c7b13f22a21f46867adc9d664505b5081847 Mon Sep 17 00:00:00 2001
From: Cuong Manh Le <cuong@windscribe.com>
Date: Wed, 14 Jun 2023 04:57:02 +0000
Subject: [PATCH] Add Dockerfile for building docker image

---
 .dockerignore |  2 ++
 Dockerfile    | 32 ++++++++++++++++++++++++++++++++
 README.md     |  7 +++++++
 3 files changed, 41 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 Dockerfile

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..95d7144
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+Dockerfile
+.git/
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d0d2b54
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,32 @@
+# Using Debian bullseye for building regular image.
+# Using scratch image for minimal image size.
+# The final image has:
+#
+# - Timezone info file.
+# - CA certs file.
+# - /etc/{passwd,group} file.
+# - Non-cgo ctrld binary.
+#
+# CI_COMMIT_TAG is used to set the version of ctrld binary.
+FROM golang:bullseye as base
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y upx-ucl
+
+COPY . .
+
+ARG tag=master
+ENV CI_COMMIT_TAG=$tag
+RUN CGO_ENABLED=0 ./scripts/build.sh linux/amd64
+
+FROM scratch
+
+COPY --from=base /usr/share/zoneinfo /usr/share/zoneinfo
+COPY --from=base /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=base /etc/passwd /etc/passwd
+COPY --from=base /etc/group /etc/group
+
+COPY --from=base /app/ctrld-linux-amd64-nocgo ctrld
+
+ENTRYPOINT ["./ctrld", "run"]
diff --git a/README.md b/README.md
index 3db1536..69018d6 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,13 @@ or
 $ go install github.com/Control-D-Inc/ctrld/cmd/ctrld@latest
 ```
 
+## Docker
+
+```
+$ docker build -t controld/ctrld .
+$ docker run -d --name=ctrld -p 53:53/tcp -p 53:53/udp controld/ctrld --cd=p2 -vv
+```
+
 
 # Usage
 The cli is self documenting, so free free to run `--help` on any sub-command to get specific usages.