Sync docs from v1.2.0.RELEASE to gh-pages

2017-04-10 21:22:42 -06:00
parent 71517de9be
commit 41acf79800
3 changed files with 1209 additions and 0 deletions
--- a/spring-cloud-consul/1.2.0.RELEASE/ghpages.sh
+++ b/spring-cloud-consul/1.2.0.RELEASE/ghpages.sh
@@ -0,0 +1,330 @@
+#!/bin/bash -x
+
+set -e
+
+# Set default props like MAVEN_PATH, ROOT_FOLDER etc.
+function set_default_props() {
+    # The script should be executed from the root folder
+    ROOT_FOLDER=`pwd`
+    echo "Current folder is ${ROOT_FOLDER}"
+
+    if [[ ! -e "${ROOT_FOLDER}/.git" ]]; then
+        echo "You're not in the root folder of the project!"
+        exit 1
+    fi
+
+    # Prop that will let commit the changes
+    COMMIT_CHANGES="no"
+    MAVEN_PATH=${MAVEN_PATH:-}
+    echo "Path to Maven is [${MAVEN_PATH}]"
+    REPO_NAME=${PWD##*/}
+    echo "Repo name is [${REPO_NAME}]"
+    SPRING_CLOUD_STATIC_REPO=${SPRING_CLOUD_STATIC_REPO:-git@github.com:spring-cloud/spring-cloud-static.git}
+    echo "Spring Cloud Static repo is [${SPRING_CLOUD_STATIC_REPO}"
+}
+
+# Check if gh-pages exists and docs have been built
+function check_if_anything_to_sync() {
+    git remote set-url --push origin `git config remote.origin.url | sed -e 's/^git:/https:/'`
+
+    if ! (git remote set-branches --add origin gh-pages && git fetch -q); then
+        echo "No gh-pages, so not syncing"
+        exit 0
+    fi
+
+    if ! [ -d docs/target/generated-docs ] && ! [ "${BUILD}" == "yes" ]; then
+        echo "No gh-pages sources in docs/target/generated-docs, so not syncing"
+        exit 0
+    fi
+}
+
+function retrieve_current_branch() {
+    # Code getting the name of the current branch. For master we want to publish as we did until now
+    # http://stackoverflow.com/questions/1593051/how-to-programmatically-determine-the-current-checked-out-git-branch
+    # If there is a branch already passed will reuse it - otherwise will try to find it
+    CURRENT_BRANCH=${BRANCH}
+    if [[ -z "${CURRENT_BRANCH}" ]] ; then
+      CURRENT_BRANCH=$(git symbolic-ref -q HEAD)
+      CURRENT_BRANCH=${CURRENT_BRANCH##refs/heads/}
+      CURRENT_BRANCH=${CURRENT_BRANCH:-HEAD}
+    fi
+    echo "Current branch is [${CURRENT_BRANCH}]"
+    git checkout ${CURRENT_BRANCH} || echo "Failed to check the branch... continuing with the script"
+}
+
+# Switches to the provided value of the release version. We always prefix it with `v`
+function switch_to_tag() {
+    git checkout v${VERSION}
+}
+
+# Build the docs if switch is on
+function build_docs_if_applicable() {
+    if [[ "${BUILD}" == "yes" ]] ; then
+        ./mvnw clean install -P docs -pl docs -DskipTests
+    fi
+}
+
+# Get the name of the `docs.main` property
+# Get whitelisted branches - assumes that a `docs` module is available under `docs` profile
+function retrieve_doc_properties() {
+    MAIN_ADOC_VALUE=$("${MAVEN_PATH}"mvn -q \
+        -Dexec.executable="echo" \
+        -Dexec.args='${docs.main}' \
+        --non-recursive \
+        org.codehaus.mojo:exec-maven-plugin:1.3.1:exec)
+    echo "Extracted 'main.adoc' from Maven build [${MAIN_ADOC_VALUE}]"
+
+
+    WHITELIST_PROPERTY=${WHITELIST_PROPERTY:-"docs.whitelisted.branches"}
+    WHITELISTED_BRANCHES_VALUE=$("${MAVEN_PATH}"mvn -q \
+        -Dexec.executable="echo" \
+        -Dexec.args="\${${WHITELIST_PROPERTY}}" \
+        org.codehaus.mojo:exec-maven-plugin:1.3.1:exec \
+        -P docs \
+        -pl docs)
+    echo "Extracted '${WHITELIST_PROPERTY}' from Maven build [${WHITELISTED_BRANCHES_VALUE}]"
+}
+
+# Stash any outstanding changes
+function stash_changes() {
+    git diff-index --quiet HEAD && dirty=$? || (echo "Failed to check if the current repo is dirty. Assuming that it is." && dirty="1")
+    if [ "$dirty" != "0" ]; then git stash; fi
+}
+
+# Switch to gh-pages branch to sync it with current branch
+function add_docs_from_target() {
+    local DESTINATION_REPO_FOLDER
+    if [[ -z "${DESTINATION}" && -z "${CLONE}" ]] ; then
+        DESTINATION_REPO_FOLDER=${ROOT_FOLDER}
+    elif [[ "${CLONE}" == "yes" ]]; then
+        mkdir -p ${ROOT_FOLDER}/target
+        local clonedStatic=${ROOT_FOLDER}/target/spring-cloud-static
+        if [[ ! -e "${clonedStatic}/.git" ]]; then
+            echo "Cloning Spring Cloud Static to target"
+            git clone ${SPRING_CLOUD_STATIC_REPO} ${clonedStatic} && git checkout gh-pages
+        else
+            echo "Spring Cloud Static already cloned - will pull changes"
+            cd ${clonedStatic} && git checkout gh-pages && git pull origin gh-pages
+        fi
+        DESTINATION_REPO_FOLDER=${clonedStatic}/${REPO_NAME}
+        mkdir -p ${DESTINATION_REPO_FOLDER}
+    else
+        if [[ ! -e "${DESTINATION}/.git" ]]; then
+            echo "[${DESTINATION}] is not a git repository"
+            exit 1
+        fi
+        DESTINATION_REPO_FOLDER=${DESTINATION}/${REPO_NAME}
+        mkdir -p ${DESTINATION_REPO_FOLDER}
+        echo "Destination was provided [${DESTINATION}]"
+    fi
+    cd ${DESTINATION_REPO_FOLDER}
+    git checkout gh-pages
+    git pull origin gh-pages
+
+    # Add git branches
+    ###################################################################
+    if [[ -z "${VERSION}" ]] ; then
+        copy_docs_for_current_version
+    else
+        copy_docs_for_provided_version
+    fi
+    commit_changes_if_applicable
+}
+
+
+# Copies the docs by using the retrieved properties from Maven build
+function copy_docs_for_current_version() {
+    if [[ "${CURRENT_BRANCH}" == "master" ]] ; then
+        echo -e "Current branch is master - will copy the current docs only to the root folder"
+        for f in docs/target/generated-docs/*; do
+            file=${f#docs/target/generated-docs/*}
+            if ! git ls-files -i -o --exclude-standard --directory | grep -q ^$file$; then
+                # Not ignored...
+                cp -rf $f ${ROOT_FOLDER}/
+                git add -A ${ROOT_FOLDER}/$file
+            fi
+        done
+        COMMIT_CHANGES="yes"
+    else
+        echo -e "Current branch is [${CURRENT_BRANCH}]"
+        # http://stackoverflow.com/questions/29300806/a-bash-script-to-check-if-a-string-is-present-in-a-comma-separated-list-of-strin
+        if [[ ",${WHITELISTED_BRANCHES_VALUE}," = *",${CURRENT_BRANCH},"* ]] ; then
+            mkdir -p ${ROOT_FOLDER}/${CURRENT_BRANCH}
+            echo -e "Branch [${CURRENT_BRANCH}] is whitelisted! Will copy the current docs to the [${CURRENT_BRANCH}] folder"
+            for f in docs/target/generated-docs/*; do
+                file=${f#docs/target/generated-docs/*}
+                if ! git ls-files -i -o --exclude-standard --directory | grep -q ^$file$; then
+                    # Not ignored...
+                    # We want users to access 1.0.0.RELEASE/ instead of 1.0.0.RELEASE/spring-cloud.sleuth.html
+                    if [[ "${file}" == "${MAIN_ADOC_VALUE}.html" ]] ; then
+                        # We don't want to copy the spring-cloud-sleuth.html
+                        # we want it to be converted to index.html
+                        cp -rf $f ${ROOT_FOLDER}/${CURRENT_BRANCH}/index.html
+                        git add -A ${ROOT_FOLDER}/${CURRENT_BRANCH}/index.html
+                    else
+                        cp -rf $f ${ROOT_FOLDER}/${CURRENT_BRANCH}
+                        git add -A ${ROOT_FOLDER}/${CURRENT_BRANCH}/$file
+                    fi
+                fi
+            done
+            COMMIT_CHANGES="yes"
+        else
+            echo -e "Branch [${CURRENT_BRANCH}] is not on the white list! Check out the Maven [${WHITELIST_PROPERTY}] property in
+             [docs] module available under [docs] profile. Won't commit any changes to gh-pages for this branch."
+        fi
+    fi
+}
+
+# Copies the docs by using the explicitly provided version
+function copy_docs_for_provided_version() {
+    local FOLDER=${DESTINATION_REPO_FOLDER}/${VERSION}
+    mkdir -p ${FOLDER}
+    echo -e "Current tag is [v${VERSION}] Will copy the current docs to the [${FOLDER}] folder"
+    for f in ${ROOT_FOLDER}/docs/target/generated-docs/*; do
+        file=${f#${ROOT_FOLDER}/docs/target/generated-docs/*}
+        copy_docs_for_branch ${file} ${FOLDER}
+    done
+    COMMIT_CHANGES="yes"
+    CURRENT_BRANCH="v${VERSION}"
+}
+
+# Copies the docs from target to the provided destination
+# Params:
+# $1 - file from target
+# $2 - destination to which copy the files
+function copy_docs_for_branch() {
+    local file=$1
+    local destination=$2
+    if ! git ls-files -i -o --exclude-standard --directory | grep -q ^${file}$; then
+        # Not ignored...
+        # We want users to access 1.0.0.RELEASE/ instead of 1.0.0.RELEASE/spring-cloud.sleuth.html
+        if [[ ("${file}" == "${MAIN_ADOC_VALUE}.html") || ("${file}" == "${REPO_NAME}.html") ]] ; then
+            # We don't want to copy the spring-cloud-sleuth.html
+            # we want it to be converted to index.html
+            cp -rf $f ${destination}/index.html
+            git add -A ${destination}/index.html
+        else
+            cp -rf $f ${destination}
+            git add -A ${destination}/$file
+        fi
+    fi
+}
+
+function commit_changes_if_applicable() {
+    if [[ "${COMMIT_CHANGES}" == "yes" ]] ; then
+        COMMIT_SUCCESSFUL="no"
+        git commit -a -m "Sync docs from ${CURRENT_BRANCH} to gh-pages" && COMMIT_SUCCESSFUL="yes" || echo "Failed to commit changes"
+
+        # Uncomment the following push if you want to auto push to
+        # the gh-pages branch whenever you commit to master locally.
+        # This is a little extreme. Use with care!
+        ###################################################################
+        if [[ "${COMMIT_SUCCESSFUL}" == "yes" ]] ; then
+            git push origin gh-pages
+        fi
+    fi
+}
+
+# Switch back to the previous branch and exit block
+function checkout_previous_branch() {
+    # If -version was provided we need to come back to root project
+    cd ${ROOT_FOLDER}
+    git checkout ${CURRENT_BRANCH} || echo "Failed to check the branch... continuing with the script"
+    if [ "$dirty" != "0" ]; then git stash pop; fi
+    exit 0
+}
+
+# Assert if properties have been properly passed
+function assert_properties() {
+echo "VERSION [${VERSION}], DESTINATION [${DESTINATION}], CLONE [${CLONE}]"
+if [[ "${VERSION}" != "" && (-z "${DESTINATION}" && -z "${CLONE}") ]] ; then echo "Version was set but destination / clone was not!"; exit 1;fi
+if [[ ("${DESTINATION}" != "" && "${CLONE}" != "") && -z "${VERSION}" ]] ; then echo "Destination / clone was set but version was not!"; exit 1;fi
+if [[ "${DESTINATION}" != "" && "${CLONE}" == "yes" ]] ; then echo "Destination and clone was set. Pick one!"; exit 1;fi
+}
+
+# Prints the usage
+function print_usage() {
+cat <<EOF
+The idea of this script is to update gh-pages branch with the generated docs. Without any options
+the script will work in the following manner:
+
+- if there's no gh-pages / target for docs module then the script ends
+- for master branch the generated docs are copied to the root of gh-pages branch
+- for any other branch (if that branch is whitelisted) a subfolder with branch name is created
+    and docs are copied there
+- if the version switch is passed (-v) then a tag with (v) prefix will be retrieved and a folder
+    with that version number will be created in the gh-pages branch. WARNING! No whitelist verification will take place
+- if the destination switch is passed (-d) then the script will check if the provided dir is a git repo and then will
+    switch to gh-pages of that repo and copy the generated docs to `docs/<project-name>/<version>`
+- if the destination switch is passed (-d) then the script will check if the provided dir is a git repo and then will
+    switch to gh-pages of that repo and copy the generated docs to `docs/<project-name>/<version>`
+
+USAGE:
+
+You can use the following options:
+
+-v|--version        - the script will apply the whole procedure for a particular library version
+-d|--destination    - the root of destination folder where the docs should be copied. You have to use the full path.
+                        E.g. point to spring-cloud-static folder. Can't be used with (-c)
+-b|--build          - will run the standard build process after checking out the branch
+-c|--clone          - will automatically clone the spring-cloud-static repo instead of providing the destination.
+                        Obviously can't be used with (-d)
+
+EOF
+}
+
+
+# ==========================================
+#    ____   ____ _____  _____ _____ _______
+#  / ____|/ ____|  __ \|_   _|  __ \__   __|
+# | (___ | |    | |__) | | | | |__) | | |
+#  \___ \| |    |  _  /  | | |  ___/  | |
+#  ____) | |____| | \ \ _| |_| |      | |
+# |_____/ \_____|_|  \_\_____|_|      |_|
+#
+# ==========================================
+
+while [[ $# > 0 ]]
+do
+key="$1"
+case ${key} in
+    -v|--version)
+    VERSION="$2"
+    shift # past argument
+    ;;
+    -d|--destination)
+    DESTINATION="$2"
+    shift # past argument
+    ;;
+    -b|--build)
+    BUILD="yes"
+    ;;
+    -c|--clone)
+    CLONE="yes"
+    ;;
+    -h|--help)
+    print_usage
+    exit 0
+    ;;
+    *)
+    echo "Invalid option: [$1]"
+    print_usage
+    exit 1
+    ;;
+esac
+shift # past argument or value
+done
+
+assert_properties
+set_default_props
+check_if_anything_to_sync
+if [[ -z "${VERSION}" ]] ; then
+    retrieve_current_branch
+else
+    switch_to_tag
+fi
+build_docs_if_applicable
+retrieve_doc_properties
+stash_changes
+add_docs_from_target
+checkout_previous_branch
--- a/spring-cloud-consul/1.2.0.RELEASE/images/.gitkeep
+++ b/spring-cloud-consul/1.2.0.RELEASE/images/.gitkeep
--- a/spring-cloud-consul/1.2.0.RELEASE/index.html
+++ b/spring-cloud-consul/1.2.0.RELEASE/index.html
@@ -0,0 +1,879 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="UTF-8">
+<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="generator" content="Asciidoctor 1.5.3">
+<title>Spring Cloud Consul</title>
+<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:300,300italic,400,400italic,600,600italic%7CNoto+Serif:400,400italic,700,700italic%7CDroid+Sans+Mono:400,700">
+<style>
+/* Asciidoctor default stylesheet | MIT License | http://asciidoctor.org */
+/* Remove comment around @import statement below when using as a custom stylesheet */
+/*@import "https://fonts.googleapis.com/css?family=Open+Sans:300,300italic,400,400italic,600,600italic%7CNoto+Serif:400,400italic,700,700italic%7CDroid+Sans+Mono:400,700";*/
+article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block}
+audio,canvas,video{display:inline-block}
+audio:not([controls]){display:none;height:0}
+[hidden],template{display:none}
+script{display:none!important}
+html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}
+body{margin:0}
+a{background:transparent}
+a:focus{outline:thin dotted}
+a:active,a:hover{outline:0}
+h1{font-size:2em;margin:.67em 0}
+abbr[title]{border-bottom:1px dotted}
+b,strong{font-weight:bold}
+dfn{font-style:italic}
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+textarea{overflow:auto;vertical-align:top}
+table{border-collapse:collapse;border-spacing:0}
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+html,body{font-size:100%}
+body{background:#fff;color:rgba(0,0,0,.8);padding:0;margin:0;font-family:"Noto Serif","DejaVu Serif",serif;font-weight:400;font-style:normal;line-height:1;position:relative;cursor:auto}
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+blockquote cite:before{content:"\2014 \0020"}
+blockquote cite a,blockquote cite a:visited{color:rgba(0,0,0,.6)}
+blockquote,blockquote p{line-height:1.6;color:rgba(0,0,0,.85)}
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+*{-webkit-box-shadow:none!important;box-shadow:none!important;text-shadow:none!important}
+a{color:inherit!important;text-decoration:underline!important}
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+a[href^="http:"]:not(.bare):after,a[href^="https:"]:not(.bare):after{content:"(" attr(href) ")";display:inline-block;font-size:.875em;padding-left:.25em}
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+#toc,.sidebarblock,.exampleblock>.content{background:none!important}
+#toc{border-bottom:1px solid #ddddd8!important;padding-bottom:0!important}
+.sect1{padding-bottom:0!important}
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+body.book #header{text-align:center}
+body.book #header>h1:first-child{border:0!important;margin:2.5em 0 1em 0}
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+body.book #header .details span:first-child{margin-left:0!important}
+body.book #header .details br{display:block}
+body.book #header .details br+span:before{content:none!important}
+body.book #toc{border:0!important;text-align:left!important;padding:0!important;margin:0!important}
+body.book #toc,body.book #preamble,body.book h1.sect0,body.book .sect1>h2{page-break-before:always}
+.listingblock code[data-lang]:before{display:block}
+#footer{background:none!important;padding:0 .9375em}
+#footer-text{color:rgba(0,0,0,.6)!important;font-size:.9em}
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+.hide-for-print{display:none!important}
+.show-for-print{display:inherit!important}}
+</style>
+</head>
+<body class="article">
+<div id="header">
+<h1>Spring Cloud Consul</h1>
+</div>
+<div id="content">
+<div id="preamble">
+<div class="sectionbody">
+<div class="paragraph">
+<p><strong>1.2.0.RELEASE</strong></p>
+</div>
+<div class="paragraph">
+<p>This project provides Consul integrations for Spring Boot apps through autoconfiguration
+and binding to the Spring Environment and other Spring programming model idioms. With a few
+simple annotations you can quickly enable and configure the common patterns inside your
+application and build large distributed systems with Consul based components. The
+patterns provided include Service Discovery, Control Bus and Configuration.
+Intelligent Routing (Zuul) and Client Side Load Balancing (Ribbon), Circuit Breaker
+(Hystrix) are provided by integration with Spring Cloud Netflix.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-install">Install Consul</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Please see the <a href="https://www.consul.io/intro/getting-started/install.html">installation documentation</a> for instructions on how to install Consul.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-agent">Consul Agent</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>A Consul Agent client must be available to all Spring Cloud Consul applications.  By default, the Agent client is expected to be at <code>localhost:8500</code>.  See the <a href="https://consul.io/docs/agent/basics.html">Agent documentation</a> for specifics on how to start an Agent client and how to connect to a cluster of Consul Agent Servers.  For development, after you have installed consul, you may start a Consul Agent using the following command:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>./src/main/bash/local_run_consul.sh</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>This will start an agent in server mode on port 8500, with the ui available at <a href="http://localhost:8500" class="bare">http://localhost:8500</a></p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-discovery">Service Discovery with Consul</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Service Discovery is one of the key tenets of a microservice based architecture. Trying to hand configure each client or some form of convention can be very difficult to do and can be very brittle.  Consul provides Service Discovery services via an <a href="https://www.consul.io/docs/agent/http.html">HTTP API</a> and <a href="https://www.consul.io/docs/agent/dns.html">DNS</a>.  Spring Cloud Consul leverages the HTTP API for service registration and discovery.  This does not prevent non-Spring Cloud applications from leveraging the DNS interface.  Consul Agents servers are run in a <a href="https://www.consul.io/docs/internals/architecture.html">cluster</a> that communicates via a <a href="https://www.consul.io/docs/internals/gossip.html">gossip protocol</a> and uses the <a href="https://www.consul.io/docs/internals/consensus.html">Raft consensus protocol</a>.</p>
+</div>
+<div class="sect2">
+<h3 id="_how_to_activate">How to activate</h3>
+<div class="paragraph">
+<p>To activate Consul Service Discovery use the starter with group <code>org.springframework.cloud</code> and artifact id <code>spring-cloud-starter-consul-discovery</code>. See the <a href="http://projects.spring.io/spring-cloud/">Spring Cloud Project page</a> for details on setting up your build system with the current Spring Cloud Release Train.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_registering_with_consul">Registering with Consul</h3>
+<div class="paragraph">
+<p>When a client registers with Consul, it provides meta-data about itself such as host and port, id, name and tags.  An HTTP <a href="https://www.consul.io/docs/agent/checks.html">Check</a> is created by default that Consul hits the <code>/health</code> endpoint every 10 seconds.  If the health check fails, the service instance is marked as critical.</p>
+</div>
+<div class="paragraph">
+<p>Example Consul client:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="highlight"><code class="language-java" data-lang="java">@SpringBootApplication
+@EnableDiscoveryClient
+@RestController
+public class Application {
+
+    @RequestMapping("/")
+    public String home() {
+        return "Hello world";
+    }
+
+    public static void main(String[] args) {
+        new SpringApplicationBuilder(Application.class).web(true).run(args);
+    }
+
+}</code></pre>
+</div>
+</div>
+<div class="paragraph">
+<p>(i.e. utterly normal Spring Boot app).  If the Consul client is located somewhere other than <code>localhost:8500</code>, the configuration is required to locate the client. Example:</p>
+</div>
+<div class="listingblock">
+<div class="title">application.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      host: localhost
+      port: 8500</pre>
+</div>
+</div>
+<div class="admonitionblock caution">
+<table>
+<tr>
+<td class="icon">
+<div class="title">Caution</div>
+</td>
+<td class="content">
+If you use <a href="#spring-cloud-consul-config">Spring Cloud Consul Config</a>, the above values will need to be placed in <code>bootstrap.yml</code> instead of <code>application.yml</code>.
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The default service name, instance id and port, taken from the <code>Environment</code>, are <code>${spring.application.name}</code>, the Spring Context ID and <code>${server.port}</code> respectively.</p>
+</div>
+<div class="paragraph">
+<p><code>@EnableDiscoveryClient</code> make the app into both a Consul "service" (i.e. it registers itself) and a "client" (i.e. it can query Consul to locate other services).</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_http_health_check">HTTP Health Check</h3>
+<div class="paragraph">
+<p>The health check for a Consul instance defaults to "/health", which is the default locations of a useful endpoint in a Spring Boot Actuator application. You need to change these, even for an Actuator application if you use a non-default context path or servlet path (e.g. <code>server.servletPath=/foo</code>) or management endpoint path (e.g. <code>management.context-path=/admin</code>). The interval that Consul uses to check the health endpoint may also be configured.  "10s" and "1m" represent 10 seconds and 1 minute respectively.  Example:</p>
+</div>
+<div class="listingblock">
+<div class="title">application.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      discovery:
+        healthCheckPath: ${management.context-path}/health
+        healthCheckInterval: 15s</pre>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_metadata_and_consul_tags">Metadata and Consul tags</h4>
+<div class="paragraph">
+<p>Consul does not yet support metadata on services. Spring Cloud&#8217;s <code>ServiceInstance</code> has a <code>Map&lt;String, String&gt; metadata</code> field. Spring Cloud Consul uses Consul tags to approximate metadata until Consul officially supports metadata. Tags with the form <code>key=value</code> will be split and used as a <code>Map</code> key and value respectively. Tags without the equal <code>=</code> sign, will be used as both the key and value.</p>
+</div>
+<div class="listingblock">
+<div class="title">application.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      discovery:
+        tags: foo=bar, baz</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>The above configuration will result in a map with <code>foo&#8594;bar</code> and <code>baz&#8594;baz</code>.</p>
+</div>
+</div>
+<div class="sect3">
+<h4 id="_making_the_consul_instance_id_unique">Making the Consul Instance ID Unique</h4>
+<div class="paragraph">
+<p>By default a consul instance is registered with an ID that is equal to its Spring Application Context ID. By default, the Spring Application Context ID is <code>${spring.application.name}:comma,separated,profiles:${server.port}</code>. For most cases, this will allow multiple instances of one service to run on one machine.  If further uniqueness is required, Using Spring Cloud you can override this by providing a unique identifier in <code>spring.cloud.consul.discovery.instanceId</code>. For example:</p>
+</div>
+<div class="listingblock">
+<div class="title">application.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      discovery:
+        instanceId: ${spring.application.name}:${vcap.application.instance_id:${spring.application.instance_id:${random.value}}}</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>With this metadata, and multiple service instances deployed on localhost, the random value will kick in there to make the instance unique. In Cloudfoundry the <code>vcap.application.instance_id</code> will be populated automatically in a Spring Boot application, so the random value will not be needed.</p>
+</div>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_using_the_discoveryclient">Using the DiscoveryClient</h3>
+<div class="paragraph">
+<p>Spring Cloud has support for <a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign">Feign</a> (a REST client builder) and also <a href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-ribbon">Spring <code>RestTemplate</code></a> using the logical service names instead of physical URLs.</p>
+</div>
+<div class="paragraph">
+<p>You can also use the <code>org.springframework.cloud.client.discovery.DiscoveryClient</code> which provides a simple API for discovery clients that is not specific to Netflix, e.g.</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>@Autowired
+private DiscoveryClient discoveryClient;
+
+public String serviceUrl() {
+    List&lt;ServiceInstance&gt; list = discoveryClient.getInstances("STORES");
+    if (list != null &amp;&amp; list.size() &gt; 0 ) {
+        return list.get(0).getUri();
+    }
+    return null;
+}</pre>
+</div>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-config">Distributed Configuration with Consul</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Consul provides a <a href="https://consul.io/docs/agent/http/kv.html">Key/Value Store</a> for storing configuration and other metadata.  Spring Cloud Consul Config is an alternative to the <a href="https://github.com/spring-cloud/spring-cloud-config">Config Server and Client</a>.  Configuration is loaded into the Spring Environment during the special "bootstrap" phase.  Configuration is stored in the <code>/config</code> folder by default.  Multiple <code>PropertySource</code> instances are created based on the application&#8217;s name and the active profiles that mimicks the Spring Cloud Config order of resolving properties.  For example, an application with the name "testApp" and with the "dev" profile will have the following property sources created:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>config/testApp,dev/
+config/testApp/
+config/application,dev/
+config/application/</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>The most specific property source is at the top, with the least specific at the bottom.  Properties is the <code>config/application</code> folder are applicable to all applications using consul for configuration.  Properties in the <code>config/testApp</code> folder are only available to the instances of the service named "testApp".</p>
+</div>
+<div class="paragraph">
+<p>Configuration is currently read on startup of the application.  Sending a HTTP POST to <code>/refresh</code> will cause the configuration to be reloaded.  Watching the key value store (which Consul supports) is not currently possible, but will be a future addition to this project.</p>
+</div>
+<div class="sect2">
+<h3 id="_how_to_activate_2">How to activate</h3>
+<div class="paragraph">
+<p>To get started with Consul Configuration use the starter with group <code>org.springframework.cloud</code> and artifact id <code>spring-cloud-starter-consul-config</code>. See the <a href="http://projects.spring.io/spring-cloud/">Spring Cloud Project page</a> for details on setting up your build system with the current Spring Cloud Release Train.</p>
+</div>
+<div class="paragraph">
+<p>This will enable auto-configuration that will setup Spring Cloud Consul Config.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_customizing">Customizing</h3>
+<div class="paragraph">
+<p>Consul Config may be customized using the following properties:</p>
+</div>
+<div class="listingblock">
+<div class="title">bootstrap.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      config:
+        enabled: true
+        prefix: configuration
+        defaultContext: apps
+        profileSeparator: '::'</pre>
+</div>
+</div>
+<div class="ulist">
+<ul>
+<li>
+<p><code>enabled</code> setting this value to "false" disables Consul Config</p>
+</li>
+<li>
+<p><code>prefix</code> sets the base folder for configuration values</p>
+</li>
+<li>
+<p><code>defaultContext</code> sets the folder name used by all applications</p>
+</li>
+<li>
+<p><code>profileSeparator</code> sets the value of the separator used to separate the profile name in property sources with profiles</p>
+</li>
+</ul>
+</div>
+</div>
+<div class="sect2">
+<h3 id="spring-cloud-consul-config-watch">Config Watch</h3>
+<div class="paragraph">
+<p>The Consul Config Watch takes advantage of the ability of consul to <a href="https://www.consul.io/docs/agent/watches.html#keyprefix">watch a key prefix</a>. The Config Watch makes a blocking Consul HTTP API call to determine if any relevant configuration data has changed for the current application. If there is new configuration data a Refresh Event is published. This is equivalent to calling the <code>/refresh</code> actuator endpoint.</p>
+</div>
+<div class="paragraph">
+<p>To change the frequency of when the Config Watch is called change <code>spring.cloud.consul.config.watch.delay</code>. The default value is 1000, which is in milliseconds.</p>
+</div>
+<div class="paragraph">
+<p>To disable the Config Watch set <code>spring.cloud.consul.config.watch.enabled=false</code>.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="spring-cloud-consul-config-format">YAML or Properties with Config</h3>
+<div class="paragraph">
+<p>It may be more convenient to store a blob of properties in YAML or Properties format as opposed to individual key/value pairs.  Set the <code>spring.cloud.consul.config.format</code> property to <code>YAML</code> or <code>PROPERTIES</code>. For example to use YAML:</p>
+</div>
+<div class="listingblock">
+<div class="title">bootstrap.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      config:
+        format: YAML</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>YAML must be set in the appropriate <code>data</code> key in consul. Using the defaults above the keys would look like:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>config/testApp,dev/data
+config/testApp/data
+config/application,dev/data
+config/application/data</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>You could store a YAML document in any of the keys listed above.</p>
+</div>
+<div class="paragraph">
+<p>You can change the data key using <code>spring.cloud.consul.config.data-key</code>.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="spring-cloud-consul-config-git2consul">git2consul with Config</h3>
+<div class="paragraph">
+<p>git2consul is a Consul community project that loads files from a git repository to individual keys into Consul. By default the names of the keys are names of the files. YAML and Properties files are supported with file extensions of <code>.yml</code> and <code>.properties</code> respectively.  Set the <code>spring.cloud.consul.config.format</code> property to <code>FILES</code>. For example:</p>
+</div>
+<div class="listingblock">
+<div class="title">bootstrap.yml</div>
+<div class="content">
+<pre>spring:
+  cloud:
+    consul:
+      config:
+        format: FILES</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>Given the following keys in <code>/config</code>, the <code>development</code> profile and an application name of <code>foo</code>:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>.gitignore
+application.yml
+bar.properties
+foo-development.properties
+foo-production.yml
+foo.properties
+master.ref</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>the following property sources would be created:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>config/foo-development.properties
+config/foo.properties
+config/application.yml</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>The value of each key needs to be a properly formatted YAML or Properties file.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="spring-cloud-consul-failfast">Fail Fast</h3>
+<div class="paragraph">
+<p>It may be convenient in certain circumstances (like local development or certain test scenarios) to not fail if consul isn&#8217;t available for configuration. Setting <code>spring.cloud.consul.config.failFast=false</code> in <code>bootstrap.yml</code> will cause the configuration module to log a warning rather than throw an exception. This will allow the application to continue startup normally.</p>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-retry">Consul Retry</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>If you expect that the consul agent may occasionally be unavailable when
+your app starts, you can ask it to keep trying after a failure. You need to add
+<code>spring-retry</code> and <code>spring-boot-starter-aop</code> to your classpath. The default
+behaviour is to retry 6 times with an initial backoff interval of 1000ms and an
+exponential multiplier of 1.1 for subsequent backoffs. You can configure these
+properties (and others) using <code>spring.cloud.consul.retry.*</code> configuration properties.
+This works with both Spring Cloud Consul Config and Discovery registration.</p>
+</div>
+<div class="admonitionblock tip">
+<table>
+<tr>
+<td class="icon">
+<div class="title">Tip</div>
+</td>
+<td class="content">
+To take full control of the retry add a <code>@Bean</code> of type
+<code>RetryOperationsInterceptor</code> with id "consulRetryInterceptor". Spring
+Retry has a <code>RetryInterceptorBuilder</code> that makes it easy to create one.
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-bus">Spring Cloud Bus with Consul</h2>
+<div class="sectionbody">
+<div class="sect2">
+<h3 id="_how_to_activate_3">How to activate</h3>
+<div class="paragraph">
+<p>To get started with the Consul Bus use the starter with group <code>org.springframework.cloud</code> and artifact id <code>spring-cloud-starter-consul-bus</code>. See the <a href="http://projects.spring.io/spring-cloud/">Spring Cloud Project page</a> for details on setting up your build system with the current Spring Cloud Release Train.</p>
+</div>
+<div class="paragraph">
+<p>See the <a href="https://cloud.spring.io/spring-cloud-bus/">Spring Cloud Bus</a> documentation for the available actuator endpoints and howto send custom messages.</p>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-hystrix">Circuit Breaker with Hystrix</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Applications can use the Hystrix Circuit Breaker provided by the Spring Cloud Netflix project by including this starter in the projects pom.xml: <code>spring-cloud-starter-hystrix</code>.  Hystrix doesn&#8217;t depend on the Netflix Discovery Client. The <code>@EnableHystrix</code> annotation should be placed on a configuration class (usually the main class). Then methods can be annotated with <code>@HystrixCommand</code> to be protected by a circuit breaker. See <a href="http://projects.spring.io/spring-cloud/spring-cloud.html#_circuit_breaker_hystrix_clients">the documentation</a> for more details.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="spring-cloud-consul-turbine">Hystrix metrics aggregation with Turbine and Consul</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Turbine (provided by the Spring Cloud Netflix project), aggregates multiple instances Hystrix metrics streams, so the dashboard can display an aggregate view. Turbine uses the <code>DiscoveryClient</code> interface to lookup relevant instances. To use Turbine with Spring Cloud Consul, configure the Turbine application in a manner similar to the following examples:</p>
+</div>
+<div class="listingblock">
+<div class="title">pom.xml</div>
+<div class="content">
+<pre>&lt;dependency&gt;
+    &lt;groupId&gt;org.springframework.cloud&lt;/groupId&gt;
+    &lt;artifactId&gt;spring-cloud-netflix-turbine&lt;/artifactId&gt;
+&lt;/dependency&gt;
+&lt;dependency&gt;
+    &lt;groupId&gt;org.springframework.cloud&lt;/groupId&gt;
+    &lt;artifactId&gt;spring-cloud-starter-consul-discovery&lt;/artifactId&gt;
+&lt;/dependency&gt;</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>Notice that the Turbine dependency is not a starter. The turbine starter includes support for Netflix Eureka.</p>
+</div>
+<div class="listingblock">
+<div class="title">application.yml</div>
+<div class="content">
+<pre>spring.application.name: turbine
+applications: consulhystrixclient
+turbine:
+  aggregator:
+    clusterConfig: ${applications}
+  appConfig: ${applications}</pre>
+</div>
+</div>
+<div class="paragraph">
+<p>The <code>clusterConfig</code> and <code>appConfig</code> sections must match, so it&#8217;s useful to put the comma-separated list of service ID&#8217;s into a separate configuration property.</p>
+</div>
+<div class="listingblock">
+<div class="title">Turbine.java</div>
+<div class="content">
+<pre>@EnableTurbine
+@EnableDiscoveryClient
+@SpringBootApplication
+public class Turbine {
+    public static void main(String[] args) {
+        SpringApplication.run(DemoturbinecommonsApplication.class, args);
+    }
+}</pre>
+</div>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>