fix(scripts): wget terraform directly from releases.hashicorp.com (#9594)

scripts/Dockerfile.base

@@ -12,9 +12,6 @@ RUN apk add --no-cache \
 		bash \
 		git \
 		openssh-client && \
-	# Use the edge repo, since Terraform doesn't seem to be backported to 3.18.
-	apk add --no-cache --repository=https://dl-cdn.alpinelinux.org/alpine/edge/community \
-		terraform=~1.5 && \
 	addgroup \
 		-g 1000 \
 		coder && \
@@ -25,6 +22,15 @@ RUN apk add --no-cache \
 		-u 1000 \
 		-G coder \
 		coder
+# Terraform was disabled in the edge repo due to a build issue.
+# https://gitlab.alpinelinux.org/alpine/aports/-/commit/f3e263d94cfac02d594bef83790c280e045eba35
+# Using wget for now. Note that busybox unzip doesn't support streaming.
+ARG ARCH
+RUN wget -O /tmp/terraform.zip "https://releases.hashicorp.com/terraform/1.5.6/terraform_1.5.6_linux_${ARCH}.zip" && \
+		busybox unzip /tmp/terraform.zip -d /usr/local/bin && \
+		rm -f /tmp/terraform.zip && \
+		chmod +x /usr/local/bin/terraform && \
+		terraform --version
 
 USER 1000:1000
 ENV HOME=/home/coder

scripts/build_docker.sh

@@ -103,6 +103,7 @@ declare -A arch_map=(
 	[arm]="linux/arm/v7"
 	[armv7]="linux/arm/v7"
 )
+orig_arch="$arch"
 if [[ "${arch_map[$arch]+exists}" != "" ]]; then
 	arch="${arch_map[$arch]}"
 fi
@@ -124,6 +125,7 @@ if [[ "$build_base" != "" ]]; then
 	log "--- Building base Docker image for $arch ($build_base)"
 	docker build \
 		--platform "$arch" \
+		--build-arg "ARCH=${orig_arch}" \
 		--tag "$build_base" \
 		--no-cache \
 		-f Dockerfile.base \