Ubuntu 21.04 changed /etc/service to /etc/runit/runsvdir/svmanaged

Dockerfile

@@ -1,7 +1,7 @@
-FROM ubuntu:20.10
+FROM ubuntu:21.04
 LABEL maintainer="Frank Denis"
 SHELL ["/bin/sh", "-x", "-c"]
-ENV SERIAL 2
+ENV SERIAL 3
 
 ENV CFLAGS=-Ofast
 ENV BUILD_DEPS   curl make build-essential git libevent-dev libexpat1-dev autoconf file libssl-dev byacc
@@ -57,20 +57,21 @@ RUN groupadd _encrypted-dns && \
     chown _encrypted-dns:_encrypted-dns /opt/dnscrypt-wrapper/etc/keys
 
 RUN mkdir -p \
-    /etc/service/unbound \
-    /etc/service/watchdog
+    /var/svc/unbound \
+    /var/svc/encrypted-dns \
+    /var/svc/watchdog
 
 COPY encrypted-dns.toml.in /opt/encrypted-dns/etc/
 COPY undelegated.txt /opt/encrypted-dns/etc/
 
 COPY entrypoint.sh /
 
-COPY unbound.sh /etc/service/unbound/run
-COPY unbound-check.sh /etc/service/unbound/check
+COPY unbound.sh /var/svc/unbound/run
+COPY unbound-check.sh /var/svc/unbound/check
 
-COPY encrypted-dns.sh /etc/service/encrypted-dns/run
+COPY encrypted-dns.sh /var/svc/encrypted-dns/run
 
-COPY watchdog.sh /etc/service/watchdog/run
+COPY watchdog.sh /var/svc/watchdog/run
 
 VOLUME ["/opt/encrypted-dns/etc/keys"]
 

entrypoint.sh

@@ -13,6 +13,7 @@ LISTS_DIR="/opt/encrypted-dns/etc/lists"
 CONF_DIR="/opt/encrypted-dns/etc"
 CONFIG_FILE="${CONF_DIR}/encrypted-dns.toml"
 CONFIG_FILE_TEMPLATE="${CONF_DIR}/encrypted-dns.toml.in"
+SERVICES_DIR="/etc/runit/runsvdir/svmanaged"
 
 init() {
     if [ "$(is_initialized)" = yes ]; then
@@ -172,6 +173,11 @@ start() {
     /opt/encrypted-dns/sbin/encrypted-dns \
         --config "$CONFIG_FILE" --dry-run |
         tee "${KEYS_DIR}/provider-info.txt"
+
+    find /var/svc -mindepth 1 -maxdepth 1 -type d | while read -r service; do
+        ln -s "$service" "${SERVICES_DIR}/"
+    done
+
     exec /etc/runit/2 </dev/null >/dev/null 2>/dev/null
 }