From 7e9fe5b998f2cf86951df3f443714beb413d63fb Mon Sep 17 00:00:00 2001
From: Bret Fisher <bret@bretfisher.com>
Date: Thu, 3 Jan 2019 22:40:05 -0500
Subject: [PATCH] improved logging with yaml template

also added verbose logging for traefik
---
 stack-proxy-global.yml | 34 +++++++++++++++++++---------------
 stack-visualizer.yml   | 15 +++++++++++----
 stack-voting.yml       | 42 +++++++++++++++++++-----------------------
 3 files changed, 49 insertions(+), 42 deletions(-)

diff --git a/stack-proxy-global.yml b/stack-proxy-global.yml
index 15b0b71..22ec6f6 100644
--- a/stack-proxy-global.yml
+++ b/stack-proxy-global.yml
@@ -15,9 +15,19 @@
 
 version: '3.7'
 
+x-default-opts: 
+  &default-opts
+  logging:
+    options:
+      max-size: "1m" 
+  # driver: "gelf"
+  # options:
+  #   gelf-address: "udp://127.0.0.1:5000"
+
 services:
 
   traefik-init:
+    <<: *default-opts
     image: traefik:1.7-alpine
     networks:
       - traefik-consul
@@ -25,6 +35,10 @@ services:
       # Use your favourite settings here, but add:
       - storeconfig
       - --api
+      # NOTE: you'll want to lower this logLevel for real word stuff
+      - --logLevel="DEBUG"
+      # NOTE: you'll want to disable this for anything of signifant traffic, or route logs outside stdout
+      - --accessLog
       - --docker
       - --docker.endPoint=http://dockersocket:2375
       - --docker.swarmMode
@@ -50,11 +64,9 @@ services:
     deploy:
       restart_policy:
         condition: on-failure
-    logging:
-      options:
-        max-size: "500k"
 
   traefik:
+    <<: *default-opts
     image: traefik:1.7-alpine
     networks:
       - proxy
@@ -82,11 +94,9 @@ services:
       # if you have enough servers, make this only run on workers, maybe in a public DMZ
       # placement:
         # constraints: [node.role == worker]
-    logging:
-      options:
-        max-size: "500k"
 
   consul:
+    <<: *default-opts
     image: consul
     command: agent -server -bootstrap-expect=1
     networks:
@@ -97,17 +107,13 @@ services:
       - CONSUL_LOCAL_CONFIG={"server":true}
       - CONSUL_BIND_INTERFACE=eth0
       - CONSUL_CLIENT_INTERFACE=eth0
-    deploy:
-      replicas: 1
-    logging:
-      options:
-        max-size: "500k"
 
 # this custom haproxy allows us to move traefik to worker nodes
 # while this container listens on managers and only allows
 # traefik to connect, read-only, to limited docker api calls
 # https://github.com/Tecnativa/docker-socket-proxy
   dockersocket:
+    <<: *default-opts
     image: tecnativa/docker-socket-proxy
     networks:
       - traefik-docker
@@ -123,13 +129,11 @@ services:
       mode: global
       placement:
         constraints: [node.role == manager]
-    logging:
-      options:
-        max-size: "500k"
 
 volumes:
   consul:
-    driver: rexray/dobs
+    driver: ${DOCKER_VOL_DRIVER:-local}
+    # for example set DOCKER_VOL_DRIVER="rexray/dobs"
     driver_opts:
       size: 1
 
diff --git a/stack-visualizer.yml b/stack-visualizer.yml
index 2bf103b..d46642d 100644
--- a/stack-visualizer.yml
+++ b/stack-visualizer.yml
@@ -1,8 +1,19 @@
 version: '3'
 
+x-default-opts: &default-opts:
+  logging:
+    options:
+      max-size: "1m" 
+
+  # logging:
+  #   driver: "gelf"
+  #   options:
+  #     gelf-address: "udp://127.0.0.1:5000"
+
 services:
 
   viz:
+    <<: *default-opts
     image: dockersamples/visualizer
     deploy:
       replicas: 1
@@ -12,8 +23,4 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
     ports:
       - 4040:8080
-    logging:
-      options:
-        max-size: "500k"
-
 
diff --git a/stack-voting.yml b/stack-voting.yml
index 4f77431..60c6b96 100644
--- a/stack-voting.yml
+++ b/stack-voting.yml
@@ -1,8 +1,18 @@
 version: '3.7'
 
+x-default-opts: 
+  &default-opts
+  logging:
+    options:
+      max-size: "1m" 
+  # driver: "gelf"
+  # options:
+  #   gelf-address: "udp://127.0.0.1:5000"
+
 services:
 
   redis:
+    <<: *default-opts
     image: redis:alpine
     command: redis-server --appendonly yes
     volumes:
@@ -11,12 +21,9 @@ services:
       - frontend
     deploy:
       endpoint_mode: dnsrr
-    # logging:
-    #   driver: "gelf"
-    #   options:
-    #     gelf-address: "udp://127.0.0.1:5000"
-
+  
   db:
+    <<: *default-opts
     image: postgres:9.6
     volumes:
       - db-data:/var/lib/postgresql/data
@@ -24,12 +31,9 @@ services:
       - backend
     deploy:
       endpoint_mode: dnsrr
-    # logging:
-    #   driver: "gelf"
-    #   options:
-    #     gelf-address: "udp://127.0.0.1:5000"
 
   vote:
+    <<: *default-opts
     image: bretfisher/examplevotingapp_vote
     networks:
       - frontend
@@ -40,12 +44,9 @@ services:
         - traefik.port=80
         - traefik.docker.network=proxy
         - traefik.frontend.rule=Host:vote.dogvs.cat
-    # logging:
-    #   driver: "gelf"
-    #   options:
-    #     gelf-address: "udp://127.0.0.1:5000"
 
   result:
+    <<: *default-opts
     image: bretfisher/examplevotingapp_result
     networks:
       - backend
@@ -57,22 +58,15 @@ services:
         - traefik.docker.network=proxy
         - traefik.frontend.rule=Host:result.dogvs.cat
         - traefik.backend.loadbalancer.stickiness=true
-    # logging:
-    #   driver: "gelf"
-    #   options:
-    #     gelf-address: "udp://127.0.0.1:5000"
 
   worker:
+    <<: *default-opts
     image: bretfisher/examplevotingapp_worker:java
     networks:
       - frontend
       - backend
     deploy:
       replicas: 2
-    # logging:
-    #   driver: "gelf"
-    #   options:
-    #     gelf-address: "udp://127.0.0.1:5000"
         
 networks:
   frontend: {}
@@ -82,11 +76,13 @@ networks:
 
 volumes:
   db-data:
-    driver: rexray/dobs
+    driver: ${DOCKER_VOL_DRIVER:-local}
+    # for example set DOCKER_VOL_DRIVER="rexray/dobs"
     driver_opts:
       size: 1
   redis-data:
-    driver: rexray/dobs
+    driver: ${DOCKER_VOL_DRIVER:-local}
+    # for example set DOCKER_VOL_DRIVER="rexray/dobs"
     driver_opts:
       size: 1