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YuryHrytsukYuryHrytsuk
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‎services/traefik/config/api/503.json‎

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{
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"errors": ["Oops! Something went wrong. Please try again."]
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}

‎services/traefik/config/api/default.conf‎

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server {
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listen 80;
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listen [::]:80;
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server_name localhost;
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error_page 503 /503.json;
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location / {
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return 503;
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}
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location = /503.json {
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default_type application/json;
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add_header Retry-After "10" always; # https://serverfault.com/a/647552
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root /usr/share/nginx/api;
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}
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}

‎services/traefik/config/web/503.html‎

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<html style="overflow: hidden; margin: 0px; padding: 0px; height: 100%; width: 100%;"><head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<!-- Setup the viewport for mobile and desktop environments -->
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
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<!-- Configure linking of this application to the home screen of mobile devices -->
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<meta name="apple-mobile-web-app-title" content="${name}">
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<meta name="mobile-web-app-capable" content="yes">
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<meta name="apple-mobile-web-app-capable" content="yes">
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<meta name="apple-mobile-web-app-status-bar-style" content="default">
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<meta name="msapplication-tap-highlight" content="no">
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<!-- Disable chrome translation requests and automatic phone number linking -->
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<meta name="google" value="notranslate">
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<style>
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body {
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padding: 0px;
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margin: 0px;
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width: 100%;
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height: 100%;
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position: fixed;
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-webkit-touch-callout: none !important;
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overflow: hidden;
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background-color: #202020;
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}
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.container {
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position: relative;
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text-align: center;
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color: white;
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}
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.box {
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/* 50% darker than the main color bg */
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opacity: .7;
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padding-bottom: 20px;
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padding-top: 1px;
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padding-right: 40px;
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padding-left: 40px;
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}
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.centered {
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position: absolute;
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top: 40%;
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left: 50%;
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transform: translate(-50%, -50%);
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}
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h2 {
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font-family: "Helvetica";
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font-size: 2.4em;
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color: white;
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text-align: center;
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}
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</style>
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<title>Oops</title>
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<noscript>
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<meta http-equiv="refresh" content="0; url=nojs.html"/>
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</noscript>
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<body>
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<div class="container"></div>
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<div class="centered">
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<div class="box">
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<h2>
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Oops! Something went wrong.<br>Please try again.
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</h2>
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</div>
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</div>
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</section>
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</body>

‎services/traefik/config/web/default.conf‎

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server {
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listen 80;
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listen [::]:80;
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server_name localhost;
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error_page 503 /503.html;
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location / {
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return 503;
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}
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location = /503.html {
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default_type text/html;
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add_header Retry-After "10" always; # https://serverfault.com/a/647552
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root /usr/share/nginx/html;
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}
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}

‎services/traefik/docker-compose.yml.j2‎

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networks:
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- public
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fallback-service-web:
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image: nginx:1.25.1
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configs:
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- source: web_html
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target: /usr/share/nginx/html/503.html
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- source: web_nginx_config
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target: /etc/nginx/conf.d/default.conf
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networks:
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- public
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- monitored
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deploy:
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placement:
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constraints:
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- node.labels.simcore==true
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update_config:
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order: start-first
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labels:
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- traefik.enable=true
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- traefik.docker.network=${PUBLIC_NETWORK}
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- traefik.http.routers.fallback_html.priority=3
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- traefik.http.routers.fallback_html.tls=true
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- traefik.http.routers.fallback_html.rule=Host(`fallback.osparc.local`)
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- traefik.http.services.fallback_html.loadbalancer.server.port=80
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- traefik.http.routers.fallback_html.entrypoints=https
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fallback-service-api:
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image: nginx:1.25.1
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configs:
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- source: api_json
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target: /usr/share/nginx/api/503.json
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- source: api_nginx_config
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target: /etc/nginx/conf.d/default.conf
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networks:
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- public
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- monitored
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deploy:
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placement:
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constraints:
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- node.labels.simcore==true
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update_config:
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order: start-first
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labels:
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- traefik.enable=true
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- traefik.docker.network=${PUBLIC_NETWORK}
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- traefik.http.routers.fallback_api.priority=3
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- traefik.http.routers.fallback_api.tls=true
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- traefik.http.routers.fallback_api.rule=Host(`fallback-api.osparc.local`)
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- traefik.http.services.fallback_api.loadbalancer.server.port=80
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- traefik.http.routers.fallback_api.entrypoints=https
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{%- raw %}
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configs:
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web_html:
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file: ./config/web/503.html
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name: web_html_${DOCKER_IMAGE_TAG?error} # exit with error if not defined
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api_json:
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file: ./config/api/503.json
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name: api_json_${DOCKER_IMAGE_TAG?error}
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web_nginx_config:
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file: ./config/web/default.conf
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name: web_nginx_config_${DOCKER_IMAGE_TAG?error}
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api_nginx_config:
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file: ./config/api/default.conf
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name: api_nginx_config_${DOCKER_IMAGE_TAG?error}
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{% endraw %}
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networks:
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public:
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external: true

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