Update thc to 0.39.0 and use new THC_PORT_NAME

Closes #162

Author: Fijxu

Dockerfile

@@ -2,12 +2,13 @@
 # check=error=true
 
 # Default values for versions
-ARG THC_VERSION='0.36.0' \
+ARG THC_VERSION='0.39.0' \
     TINI_VERSION='0.19.0'
 
 # Default values for variables that change less often
 ARG DENO_DIR='/deno-dir' \
     GH_BASE_URL='https://github.com' \
+    THC_PORT_NAME='PORT' \
     HOST='0.0.0.0' \
     PORT='8282'
 
@@ -30,15 +31,18 @@ RUN adduser -u 10001 -S appuser
 # Stage for downloading files using curl from Debian
 FROM dependabot-debian AS debian-curl
 RUN DEBIAN_FRONTEND='noninteractive' && export DEBIAN_FRONTEND && \
-    apt-get update && apt-get install -y curl
+    apt-get update && apt-get install -y curl xz-utils
 
 # Download tiny-health-checker from GitHub
 FROM debian-curl AS thc-download
 ARG GH_BASE_URL THC_VERSION
 RUN arch="$(uname -m)" && \
     gh_url() { printf -- "${GH_BASE_URL}/%s/releases/download/%s/%s\n" "$@" ; } && \
-    URL="$(gh_url dmikusa/tiny-health-checker v${THC_VERSION} thc-${arch}-unknown-linux-musl)" && \
-    curl -fsSL --output /thc "${URL}" && chmod -v 00555 /thc
+    URL="$(gh_url dmikusa/tiny-health-checker v${THC_VERSION} tiny-health-checker-${arch}-unknown-linux-musl.tar.xz)" && \
+    curl -fsSL --output /tiny-health-checker-${arch}-unknown-linux-musl.tar.xz "${URL}" && \
+    tar -xvf /tiny-health-checker-${arch}-unknown-linux-musl.tar.xz && \
+    mv /tiny-health-checker-${arch}-unknown-linux-musl/thc /thc && \
+    chmod -v 00555 /thc
 
 # Cache the thc binary as a layer
 FROM scratch AS thc-bin
@@ -117,13 +121,13 @@ WORKDIR /app
 
 COPY --from=builder /app/invidious_companion ./
 
-ARG HOST PORT THC_VERSION TINI_VERSION
+ARG HOST PORT THC_VERSION THC_PORT_NAME TINI_VERSION
 EXPOSE "${PORT}/tcp"
 
 ENV SERVER_BASE_PATH=/companion \
     HOST="${HOST}" \
     PORT="${PORT}" \
-    THC_PORT="${PORT}" \
+    THC_PORT_NAME="${THC_PORT_NAME}" \
     THC_PATH="/healthz" \
     THC_VERSION="${THC_VERSION}" \
     TINI_VERSION="${TINI_VERSION}"