Merge pull request dmuth#3 from dmuth/hosts

Added support for custom /etc/hosts lookups
safai-labs · Dec 26, 2021 · fff2deb · fff2deb
2 parents a945091 + 306d520
commit fff2deb
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diff --git a/README.md b/README.md
@@ -61,6 +61,15 @@ Here are a few other dashboards which show details about the running system:
 - [SEPTA Regional Rail Stats](http://localhost:3000/d/U2n119O7z/septa-regional-rail) - Stats on [SEPTA Regional Rail](http://www.septa.org/service/rail/)
 
 
+## Pinging Additional Hosts
+
+- Optionally edit the file `hosts.txt` to add human-readable names for IP addresses.
+- Copy `docker-compose.override.yml.sample` to `docker-compose.override.yml`.
+- Uncomment the `environment:` and `HOSTS:` keys.
+- Add additional hosts or IPs into `HOSTS:` as you see fit.
+- Restart the `ping` container with `docker-compose kill ping; docker-compose rm -f ping; docker-compose up -d ping`.
+
+
 ## Exporting Dashboards
 
 - If you want to export your current set of dashboards (including any changes made) to disk, first you'll need launch a shell in the tools container:

diff --git a/docker-compose.override.yml.sample b/docker-compose.override.yml.sample
@@ -14,6 +14,8 @@ services:
         loki-url: http://host.docker.internal:3100/loki/api/v1/push
 
   ping:
+    #environment:
+      #HOSTS: "google.com amazon.com google-dns cloudflare-dns "
     logging:
       driver: loki
       options:

diff --git a/docker-compose.yml b/docker-compose.yml
@@ -39,14 +39,15 @@ services:
       # Host to ping.  Can be hostname or IP.  Space-delimited.
       # Note that DNS lookups may fail, so consider pinging some IPs...
       #
-      HOSTS: "google.com amazon.com 8.8.8.8 1.1.1.1"
+      HOSTS: "google.com amazon.com google-dns cloudflare-dns "
       #
       # Comment the previous line and uncomment this one if you'd like to ping 
       # some hosts on different continents.
       #
-      #HOSTS: "google.com amazon.com 8.8.8.8 1.1.1.1 cheetah.jp leopard.se"
+      #HOSTS: "google.com amazon.com google-dns cloudflare-dns cheetah.jp leopard.se"
     volumes:
       - logs:/logs/
+      - ./hosts.txt:/etc/hosts
     restart: "always"
 
   #

diff --git a/hosts.txt b/hosts.txt
@@ -0,0 +1,10 @@
+#
+# This file is copied to /etc/hosts in the ping container.
+#
+127.0.0.1	localhost
+1.1.1.1		cloudflare-dns
+8.8.8.8		google-dns
+
+#192.168.1.1 router
+#10.0.0.1		router
+