Use new urls after upstream build changes

Dockerfile

@@ -12,6 +12,7 @@ LABEL maintainer="thespad"
 # set environment variables
 ENV XDG_CONFIG_HOME="/config/xdg"
 ENV SONARR_BRANCH="develop"
+ENV SONARR_CHANNEL="v4-nightly"
 
 RUN \
   echo "**** install packages ****" && \
@@ -23,15 +24,15 @@ RUN \
   mkdir -p /app/sonarr/bin && \
   if [ -z ${SONARR_VERSION+x} ]; then \
     SONARR_VERSION=$(curl -sX GET http://services.sonarr.tv/v1/releases \
-    | jq -r "first(.[] | select(.branch==\"$SONARR_BRANCH\") | .version)"); \
+    | jq -r "first(.[] | select(.releaseChannel==\"${SONARR_CHANNEL}\") | .version)"); \
   fi && \
   curl -o \
     /tmp/sonarr.tar.gz -L \
-    "https://download.sonarr.tv/v4/${SONARR_BRANCH}/${SONARR_VERSION}/Sonarr.${SONARR_BRANCH}.${SONARR_VERSION}.linux-musl-x64.tar.gz" && \
+    "https://services.sonarr.tv/v1/update/${SONARR_BRANCH}/download?version=${SONARR_VERSION}&os=linuxmusl&runtime=netcore&arch=x64" && \
   tar xzf \
     /tmp/sonarr.tar.gz -C \
     /app/sonarr/bin --strip-components=1 && \
-  echo -e "UpdateMethod=docker\nBranch=${SONARR_BRANCH}\nPackageVersion=${VERSION}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/sonarr/package_info && \
+  echo -e "UpdateMethod=docker\nBranch=${SONARR_BRANCH}\nPackageVersion=${VERSION:-LocalBuild}\nPackageAuthor=[linuxserver.io](https://linuxserver.io)" > /app/sonarr/package_info && \
   echo "**** cleanup ****" && \
   rm -rf \
     /app/sonarr/bin/Sonarr.Update \