feat: update scripts to use env vars

- bitcoind entrypoint set chain value
- bitcoind healthcheck fix cli parameter
- lightning entrypoint script
- lightning health script
- prepend chain in bitcoin.conf

Signed-off-by: Lakshya Singh <lakshay.singh1108@gmail.com>

lightningd/Dockerfile

@@ -75,8 +75,6 @@ ENV LIGHTNINGD_DATA=${LIGHTNINGD_HOME}/.lightning \
     LIGHTNINGD_PORT=9735 \
     BITCOIND_HOME=/root/.bitcoin
 
-COPY lightningd/entrypoint.sh /entrypoint.sh
-
 COPY --from=builder /usr/bin/lightningd /usr/bin/
 COPY --from=builder /usr/bin/lightning-cli /usr/bin/
 COPY --from=builder /usr/bin/lightning-hsmtool /usr/bin/
@@ -87,8 +85,15 @@ COPY --from=builder /usr/bin/clboss /usr/bin/clboss
 
 RUN addgroup -S lightning && adduser -S lightning -G lightning && \
     mkdir -p ${LIGHTNINGD_DATA} && \
-    touch ${LIGHTNINGD_DATA}/config && \
-    chown -R lightning:lightning "${LIGHTNINGD_DATA}"
+    chown -R lightning:lightning ${LIGHTNINGD_DATA}
+
+COPY assets/bitcoin.conf "${BITCOIND_HOME}"/bitcoin.conf
+
+COPY lightningd/entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+COPY lightningd/healthcheck.sh /healthcheck.sh
+RUN chmod +x /healthcheck.sh
 
 VOLUME ["${LIGHTNINGD_DATA}"]
 
@@ -102,8 +107,8 @@ COPY assets/main-config /main-config
 
 USER lightning
 
-HEALTHCHECK --interval=30s --timeout=10s --start-period=30s \
-    CMD lighting-cli --testnet getinfo
+HEALTHCHECK --interval=10s --timeout=10s --start-period=15s \
+    CMD ["/bin/sh", "-c", "/healthcheck.sh"]
 
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["lightningd"]