From 14df7227faf20cf0a76cf1e2abc51a00d1eb2a82 Mon Sep 17 00:00:00 2001
From: Juan Manuel Lopez <tandiljuan@gmail.com>
Date: Tue, 31 Aug 2021 20:30:28 -0300
Subject: [PATCH 1/4] Define 'release' profile

---
 Cargo.toml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index d2562f7..b1d1931 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,3 +37,9 @@ license-file = ["LICENSE", "0"]
 maintainer = "Wilfried Kopp aka. Chevdor <chevdor@gmail.com>"
 priority = "optional"
 section = "utility"
+
+[profile.release]
+codegen-units = 1
+lto = true
+opt-level = "z"
+panic = "abort"

From 5bf316dfbd9d87a9d15ce66ac2379fa48476b473 Mon Sep 17 00:00:00 2001
From: Juan Manuel Lopez <tandiljuan@gmail.com>
Date: Tue, 31 Aug 2021 20:11:16 -0300
Subject: [PATCH 2/4] Dockerfile to build `tera-cli` image

---
 .dockerignore |  5 +++++
 Dockerfile    | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 Dockerfile

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..6f89c1b
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,5 @@
+# Ignore everything
+*
+# With the exception of
+!src/**
+!Cargo*
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..e8c36e8
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,50 @@
+FROM rust:1.54.0-slim-buster as builder
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+# ******************************************************************************
+# Install dependencies
+# ******************************************************************************
+RUN set -eux \
+    && apt-get update \
+    && apt-get install --no-install-recommends --no-install-suggests --yes \
+        upx-ucl \
+    && apt-get autoremove --purge \
+    && apt-get autoclean \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    && echo ">>> FINISHED DEPENDENCIES INSTALL"
+
+# ******************************************************************************
+# Copy source code into container
+# ******************************************************************************
+COPY . /opt/
+
+# ******************************************************************************
+# Compile tera cli application from source
+# ******************************************************************************
+RUN set -eux \
+    && cd /opt/ \
+    && rustup target add x86_64-unknown-linux-musl \
+    && cargo build --release --target x86_64-unknown-linux-musl \
+    && upx --best --lzma target/x86_64-unknown-linux-musl/release/tera \
+    && mv target/x86_64-unknown-linux-musl/release/tera /usr/bin/ \
+    && tera --version \
+    && rm -rf target \
+    && echo ">>> FINISHED COMPILING 'tera-cli'"
+
+# ------------------------------------------------------------------------------
+# ------------------------------------------------------------------------------
+
+FROM alpine
+
+# ******************************************************************************
+# Install compiled tera cli
+# ******************************************************************************
+COPY --from=builder /usr/bin/tera /usr/bin/tera
+
+USER guest
+
+WORKDIR /opt
+
+ENTRYPOINT ["/usr/bin/tera"]

From b2f1235b05fdb3f5e106cf62f6a2b2c484ccd14d Mon Sep 17 00:00:00 2001
From: Juan Manuel Lopez <tandiljuan@gmail.com>
Date: Thu, 2 Sep 2021 23:15:39 -0300
Subject: [PATCH 3/4] Document how to build `tera cli` container

---
 README_src.adoc | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README_src.adoc b/README_src.adoc
index b940fce..e9d423b 100644
--- a/README_src.adoc
+++ b/README_src.adoc
@@ -56,6 +56,25 @@ The **tera** engine allows way more than the simple replacements shown above. Yo
 
     cargo install --git https://github.com/chevdor/tera-cli
 
+== Execute as Docker container
+
+=== Build container image
+
+    docker build --tag 'tera-cli' .
+
+=== Execute `tera` from the Docker container
+
+Check tera help
+
+    docker run -it --rm tera-cli --help
+
+Parse a template
+
+    docker run -it --rm \
+        --volume="$(pwd):/opt" \
+        --env=FOO=BAR \
+        tera-cli --template templates/env-debug.txt --env-only --env-key env
+
 == What can I do with that anyway ?
 
 Well... if you have **data** and you want to format them, this tool will likely be a great companion.

From 3695e89289dc3881ef5c7059d3e487ccdb6fadc2 Mon Sep 17 00:00:00 2001
From: Juan Manuel Lopez <tandiljuan@gmail.com>
Date: Sun, 5 Sep 2021 10:02:26 -0300
Subject: [PATCH 4/4] Update markdown README file

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index fb0caea..fdd35d9 100644
--- a/README.md
+++ b/README.md
@@ -75,6 +75,25 @@ The **tera** engine allows way more than the simple replacements shown above. Yo
 
     cargo install --git https://github.com/chevdor/tera-cli
 
+## Execute as Docker container
+
+### Build container image
+
+    docker build --tag 'tera-cli' .
+
+### Execute `tera` from the Docker container
+
+Check tera help
+
+    docker run -it --rm tera-cli --help
+
+Parse a template
+
+    docker run -it --rm \
+        --volume="$(pwd):/opt" \
+        --env=FOO=BAR \
+        tera-cli --template templates/env-debug.txt --env-only --env-key env
+
 ## What can I do with that anyway ?
 
 Well…​ if you have **data** and you want to format them, this tool will likely be a great companion.