Convert addons to non-legacy (#36)

znc/Dockerfile

@@ -2,6 +2,22 @@ ARG BUILD_FROM
 # hadolint ignore=DL3006
 FROM $BUILD_FROM
 
+RUN apk add --no-cache \
+        curl=7.67.0-r0 \
+        jq=1.6-r0 \
+    && curl -J -L -o /tmp/bashio.tar.gz \
+        "https://github.com/hassio-addons/bashio/archive/v0.8.0.tar.gz" \
+    && mkdir /tmp/bashio \
+    && tar zxvf \
+        /tmp/bashio.tar.gz \
+        --strip 1 -C /tmp/bashio \
+    \
+    && mv /tmp/bashio/lib /usr/lib/bashio \
+    && ln -s /usr/lib/bashio/bashio /usr/bin/bashio \
+    \
+    && rm -f -r \
+        /tmp/*
+
 # use /data instead of /config for hass.io environment
 RUN sed -i "s|/config|/config/znc|g" /etc/services.d/znc/run \
     && sed -i "s|/config|/config/znc|g" /etc/cont-init.d/20-config \