Minor documentation changes and update dockerfile to build from source

BUILDING.md

@@ -1,5 +1,10 @@
 # Building from Source
 
+## Dependencies
+
+* `make` - needed to build openssl via vendor feature
+* `perl` - needed to build openssl via vendor feature
+
 ## Using Cargo
 
 A debug build is straightforward:

CHANGELOG.md

@@ -14,7 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.16.4] - 2022-06-01
 ### Added
 - Dockerfile using Alpine linux with a basic install of distant, tagged as
-  `chipsenkbeil/distant:0.16.3`
+  `chipsenkbeil/distant:0.16.3` and `chipsenkbeil/distant:0.16.4`
 
 ### Fixed
 - [Issue #90](https://github.com/chipsenkbeil/distant/issues/90)

Dockerfile

@@ -1,13 +1,13 @@
-FROM alpine:3
+FROM rust:alpine AS builder
-
+# make & perl needed for openssl vendor build
-# Install curl so we can download the distant binary
+# musl-dev needed, otherwise crti.o is missing
-RUN apk add --no-cache curl
+RUN apk add --no-cache make musl-dev perl
-
+WORKDIR /usr/src/distant
-# 1. Specify the distant version
+COPY . .
-# 2. Download the MUSL artifact as alpine uses musl
+# NOTE: For musl clients, there is a bug with wezterm-ssh's libssh-rs that
-# 3. Make the binary executable
+#       prevents us from linking to it; so, we have to exclude it for musl
-ARG distant_version=0.16.4
+RUN cargo build --release --no-default-features --features ssh2
-ARG distant_url=https://github.com/chipsenkbeil/distant/releases/download/v${distant_version}/distant-linux64-musl
-RUN curl -L ${distant_url} > /usr/local/bin/distant && chmod +x /usr/local/bin/distant
 
+FROM alpine:3
+COPY --from=builder /usr/src/distant/target/release/distant /usr/local/bin/distant
 ENTRYPOINT ["/usr/local/bin/distant"]