Hugo v0.99.0

Dockerfile

@@ -1,14 +1,15 @@
 # the following version can be overridden at image build time with --build-arg
-ARG HUGO_VERSION=0.84.2
+ARG HUGO_VERSION=0.99.0
 # remove/comment the following line completely to compile vanilla Hugo:
 ARG HUGO_BUILD_TAGS=extended
 
 # Hugo >= v0.81.0 requires Go 1.16+ to build
-ARG GO_VERSION=1.16
+ARG GO_VERSION=1.18
+ARG ALPINE_VERSION=3.15
 
 # ---
 
-FROM golang:${GO_VERSION}-alpine3.13 AS build
+FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS build
 
 # renew global args from above
 # https://docs.docker.com/engine/reference/builder/#scope
@@ -28,7 +29,7 @@ RUN apk add --update --no-cache \
       g++ \
       musl-dev \
       git && \
-    go get github.com/magefile/mage
+    go install github.com/magefile/mage@latest
 
 # clone source from Git repo:
 RUN git clone \
@@ -41,19 +42,19 @@ RUN mage -v hugo && mage install
 
 # fix potential stack size problems on Alpine
 # https://github.com/microsoft/vscode-dev-containers/blob/fb63f7e016877e13535d4116b458d8f28012e87f/containers/hugo/.devcontainer/Dockerfile#L19
-RUN go get github.com/yaegashi/muslstack && \
+RUN go install github.com/yaegashi/muslstack@latest && \
     muslstack -s 0x800000 /go/bin/hugo
 
 # ---
 
-FROM alpine:3.13
+FROM alpine:${ALPINE_VERSION}
 
 # renew global args from above & pin any dependency versions
 ARG HUGO_VERSION
 # https://github.com/jgm/pandoc/releases
-ARG PANDOC_VERSION=2.14
+ARG PANDOC_VERSION=2.17.1.1
 # https://github.com/sass/dart-sass-embedded/releases
-ARG DART_SASS_VERSION=1.0.0-beta.7
+ARG DART_SASS_VERSION=1.49.9
 
 LABEL version="${HUGO_VERSION}"
 LABEL repository="https://github.com/jakejarvis/hugo-docker"