From 545c76f0111f542f24c2d2ee6c1aa5ecf57ee896 Mon Sep 17 00:00:00 2001
From: Victor Moura <victor_cmoura@hotmail.com>
Date: Tue, 7 Jan 2020 13:59:19 -0300
Subject: [PATCH 1/4] Adds self-contained dev Dockerfile

---
 Dockerfile.dev-self-contained | 38 +++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Dockerfile.dev-self-contained

diff --git a/Dockerfile.dev-self-contained b/Dockerfile.dev-self-contained
new file mode 100644
index 0000000..307ffbe
--- /dev/null
+++ b/Dockerfile.dev-self-contained
@@ -0,0 +1,38 @@
+#
+# Builder
+#
+
+FROM golang:alpine as builder
+
+# use version (for example "v0.3.3") or "master"
+ARG WATCHTOWER_VERSION=master
+
+RUN apk add --no-cache \
+    alpine-sdk \
+    ca-certificates \
+    git \
+    tzdata
+
+COPY . /watchtower
+
+RUN \
+  cd /watchtower && \
+  \
+  GO111MODULE=on CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-extldflags "-static"' . && \
+  GO111MODULE=on go test ./... -v
+
+
+#
+# watchtower
+#
+
+FROM scratch
+
+LABEL "com.centurylinklabs.watchtower"="true"
+
+# copy files from other container
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
+COPY --from=builder /watchtower/watchtower /watchtower
+
+ENTRYPOINT ["/watchtower"]

From 503d6933773d2ba34bdffa23bab0f896c8e3a97f Mon Sep 17 00:00:00 2001
From: Victor Moura <victor_cmoura@hotmail.com>
Date: Wed, 8 Jan 2020 18:51:04 -0300
Subject: [PATCH 2/4] Moved dockerfiles to an exclusive folder

---
 Dockerfile => dockerfiles/Dockerfile                              | 0
 .../Dockerfile.dev-self-contained                                 | 0
 .../Dockerfile.self-contained                                     | 0
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename Dockerfile => dockerfiles/Dockerfile (100%)
 rename Dockerfile.dev-self-contained => dockerfiles/Dockerfile.dev-self-contained (100%)
 rename Dockerfile.self-contained => dockerfiles/Dockerfile.self-contained (100%)

diff --git a/Dockerfile b/dockerfiles/Dockerfile
similarity index 100%
rename from Dockerfile
rename to dockerfiles/Dockerfile
diff --git a/Dockerfile.dev-self-contained b/dockerfiles/Dockerfile.dev-self-contained
similarity index 100%
rename from Dockerfile.dev-self-contained
rename to dockerfiles/Dockerfile.dev-self-contained
diff --git a/Dockerfile.self-contained b/dockerfiles/Dockerfile.self-contained
similarity index 100%
rename from Dockerfile.self-contained
rename to dockerfiles/Dockerfile.self-contained

From 85d39ddcd11824ad7fc1e316b028a5b8b93be820 Mon Sep 17 00:00:00 2001
From: Victor Moura <victor_cmoura@hotmail.com>
Date: Wed, 8 Jan 2020 19:42:08 -0300
Subject: [PATCH 3/4] Edits goreleaser to match exclusive dockerfiles folder

---
 goreleaser.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/goreleaser.yml b/goreleaser.yml
index 4fa3841..927cdcd 100644
--- a/goreleaser.yml
+++ b/goreleaser.yml
@@ -29,7 +29,7 @@ dockers:
     goos: linux
     goarch: amd64
     goarm: ''
-    dockerfile: Dockerfile
+    dockerfile: dockerfiles/Dockerfile
     image_templates:
       - containrrr/watchtower:amd64-{{ .Version }}
       - containrrr/watchtower:amd64-latest
@@ -39,7 +39,7 @@ dockers:
     goos: linux
     goarch: 386
     goarm: ''
-    dockerfile: Dockerfile
+    dockerfile: dockerfiles/Dockerfile
     image_templates:
       - containrrr/watchtower:i386-{{ .Version }}
       - containrrr/watchtower:i386-latest
@@ -49,7 +49,7 @@ dockers:
     goos: linux
     goarch: arm
     goarm: 6
-    dockerfile: Dockerfile
+    dockerfile: dockerfiles/Dockerfile
     image_templates:
       - containrrr/watchtower:armhf-{{ .Version }}
       - containrrr/watchtower:armhf-latest
@@ -59,7 +59,7 @@ dockers:
     goos: linux
     goarch: arm64
     goarm: ''
-    dockerfile: Dockerfile
+    dockerfile: dockerfiles/Dockerfile
     image_templates:
       - containrrr/watchtower:arm64v8-{{ .Version }}
       - containrrr/watchtower:arm64v8-latest

From 798f48aab8f3bf80aab7a1a9770a87078d592905 Mon Sep 17 00:00:00 2001
From: Victor Moura <victor_cmoura@hotmail.com>
Date: Wed, 8 Jan 2020 20:02:47 -0300
Subject: [PATCH 4/4] Adds development self-contained builds instructions to
 CONTRIBUTING.md

---
 CONTRIBUTING.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index db50329..82b1b1b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -25,4 +25,14 @@ go build                               # compiles and packages an executable bin
 go test ./... -v                       # runs tests with verbose output
 ./watchtower                           # runs the application (outside of a container)
 ```
+
 If you dont have it enabled, you'll either have to prefix each command with `GO111MODULE=on` or run `export GO111MODULE=on` before running the commands. [You can read more about modules here.](https://github.com/golang/go/wiki/Modules)
+
+To build a Watchtower image of your own, use the self-contained Dockerfiles. As the main Dockerfile, they can be found in `dockerfiles/`:
+- `dockerfiles/Dockerfile.dev-self-contained` will build an image based on your current local Watchtower files.
+- `dockerfiles/Dockerfile.self-contained` will build an image based on current Watchtower's repository on GitHub.
+
+e.g.:
+```bash
+sudo docker build . -f dockerfiles/Dockerfile.dev-self-contained -t containrrr/watchtower # to build an image from local files
+```
\ No newline at end of file