[ansible-tendermint] make seeds explicit

ansible-tendermint/README.md

@@ -40,6 +40,8 @@ tendermint_chain_id: mychain
 tendermint_genesis_time: "{{ansible_date_time.iso8601_micro}}"
 ```
 
+You can also change `templates/config.toml.j2` to suit your needs.
+
 ## Handlers
 
 These are the handlers that are defined in `handlers/main.yml`.
@@ -54,6 +56,7 @@ These are the handlers that are defined in `handlers/main.yml`.
 - hosts: all
   vars:
     tendermint_chain_id: MyAwesomeChain
+    tendermint_seeds: "172.13.0.1:46656,172.13.0.2:46656,172.13.0.3:46656"
   roles:
     - ansible-tendermint
 ```

ansible-tendermint/defaults/main.yml

@@ -20,3 +20,4 @@ tendermint_log_file: /var/log/tendermint.log
 
 tendermint_chain_id: mychain
 tendermint_genesis_time: "{{ansible_date_time.iso8601_micro}}"
+tendermint_seeds: ""

ansible-tendermint/templates/config.toml.j2

@@ -1,6 +1,6 @@
 proxy_app = "{{tendermint_proxy_app}}"
 node_laddr = "tcp://0.0.0.0:46656"
-seeds = ""
+seeds = "{{tendermint_seeds}}"
 fast_sync = true
 db_backend = "leveldb"
 log_level = "notice"