{"id":16800,"date":"2022-07-15T19:26:52","date_gmt":"2022-07-15T19:26:52","guid":{"rendered":"https:\/\/soloweb.com.br\/blog\/?p=16800"},"modified":"2022-08-07T13:15:27","modified_gmt":"2022-08-07T13:15:27","slug":"configurando-conteiner-docker-para-aplicacoes-nodejs-centos-7","status":"publish","type":"post","link":"https:\/\/soloweb.com.br\/blog\/2022\/07\/15\/configurando-conteiner-docker-para-aplicacoes-nodejs-centos-7\/","title":{"rendered":"Configurando cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS Centos 7"},"content":{"rendered":"\n<p>Na dica de hoje vamos ensinar como configurar um cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS de maneira simples e pr\u00e1tica.<\/p>\n\n\n\n<p>E se precisar de ajuda conte conosco, a SOLOWEB oferece servidores VPS e Dedicados, configuramos seu ambiente de desenvolvimento ou de produ\u00e7\u00e3o, como tamb\u00e9m prestamos consultoria em seguran\u00e7a. Fa\u00e7a uma conta\u00e7\u00e3o acesse: <a href=\"https:\/\/soloweb.com.br\">www.soloweb.com.br<\/a><\/p>\n\n\n\n<p>Primeiro ser\u00e1 necess\u00e1rio instalar o NodeJS e voc\u00ea pode seguir esse tutorial aqui nosso para instala\u00e7\u00e3o:<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-wp-embed is-provider-soloweb wp-block-embed-soloweb\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"nqcvEWkFS6\"><a href=\"https:\/\/soloweb.com.br\/blog\/2019\/12\/13\/soloweb-dicas-instalando-nodejs-em-seu-servidor-cwp\/\">SOLOWEB Dicas &#8211; Instalando NodeJs em seu servidor CWP<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;SOLOWEB Dicas &#8211; Instalando NodeJs em seu servidor CWP&#8221; &#8212; SoloWeb\" src=\"https:\/\/soloweb.com.br\/blog\/2019\/12\/13\/soloweb-dicas-instalando-nodejs-em-seu-servidor-cwp\/embed\/#?secret=yIjkVkkmuW#?secret=nqcvEWkFS6\" data-secret=\"nqcvEWkFS6\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Ele ensina como instalar o NodeJS no CWP mas a instala\u00e7\u00e3o poder\u00e1 ser realizada sem problema no CentOS 7.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Configurando cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS Centos 7\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/WUmpBFUUDcI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Vamos come\u00e7ar agora a cria\u00e7\u00e3o dos arquivos primeiramente vamos criar a pasta de nossa aplica\u00e7\u00e3o que vai receber os arquivos, ap\u00f3s criar vamos acess\u00e1-la:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ mkdir appjs_docker\n$ cd appjs_docker<\/code><\/pre>\n\n\n\n<p>Agora crie um arquivo chamado app.js da seguinte maneira:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ import and create an express app\nconst express = require('express');\nconst app = express()\n  \n\/\/ message as response\nmsg = \"Hello world! este \u00e9 um arquivo nodejs em um container docker..\"\n\/\/ create an end point of the api\napp.get('\/', (req, res) =&gt; res.send(msg));\n  \n\/\/ now run the application and start listening\n\/\/ on port 3000\napp.listen(3000, () =&gt; {\n    console.log(\"app running on port 3000...\");\n})<\/code><\/pre>\n\n\n\n<p>Agora vamos iniciar o projeto:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ npm init<\/code><\/pre>\n\n\n\n<p>Isso adicionar\u00e1 o arquivo package.json, que cont\u00e9m informa\u00e7\u00f5es sobre nossos projetos, como scripts, depend\u00eancias e vers\u00f5es. Ele pedir\u00e1 o nome do pacote, a vers\u00e3o e muitos outros (pressione enter para escolher todas as configura\u00e7\u00f5es por default).<\/p>\n\n\n\n<p>Instale a biblioteca express e nodemon, a biblioteca express ajuda a melhorar o desempenho da aplica\u00e7\u00e3o nodejs e a nodemon para restartar o aplicativo caso sofra alguma modifica\u00e7\u00e3o, para instalar e salvar as depend\u00eancias no package.json execute o seguinte comando:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ npm install --save express\n$ npm install --save nodemon<\/code><\/pre>\n\n\n\n<p>Na tag scripts do arquivo package.json adicione a seguinte linha, &#8220;start&#8221;: &#8220;nodemon app.js&#8221;, o arquivo ficar\u00e1 mais ou menos assim.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n  \"name\": \"docker-example\",\n  \"version\": \"1.0.0\",\n  \"description\": \"\",\n  \"main\": \"app.js\",\n  \"scripts\": {\n    \"start\": \"nodemon app.js\",\n    \"test\": \"echo \\\"Error: no test specified\\\" &amp;&amp; exit 1\"\n  },\n  \"author\": \"\",\n  \"license\": \"ISC\",\n  \"dependencies\": {\n    \"express\": \"^4.17.1\",\n    \"nodemon\": \"^2.0.12\"\n  }\n}<\/code><\/pre>\n\n\n\n<p>Com tudo isso nossa aplica\u00e7\u00e3o estar\u00e1 pronta e voc\u00ea pode executar-l\u00e1 para ver se n\u00e3o ocorre nenhum erro:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ npm run start<\/code><\/pre>\n\n\n\n<p>Agora finalmente vamos iniciar o Docker, vamos criar o arquivo &#8220;Dockerfile&#8221; na pasta da aplica\u00e7\u00e3o que criamos anteriormente no in\u00edcio desta dica, o arquivo Dockerfile dever\u00e1 conter o seguinte c\u00f3digo:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FROM node:latest\nWORKDIR \/app\nCOPY package.json \/app\nRUN npm install\nCOPY . \/app\nCMD &#91;\"npm\", \"start\"]<\/code><\/pre>\n\n\n\n<p>Uma breve explica\u00e7\u00e3o sobre o Dockerfile:<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>O FROM leva o nome da imagem base para usar opcionalmente com sua vers\u00e3o.<\/li><li>WORKDIR informa o diret\u00f3rio que cont\u00e9m os arquivos do aplicativo no cont\u00eainer.<\/li><li>O comando COPY copia o arquivo package.json para o diret\u00f3rio do aplicativo.<\/li><li>O comando RUN executa o comando fornecido para instalar todas as depend\u00eancias mencionadas no arquivo package.json.<\/li><li>Em seguida, COPY \u00e9 usado para copiar o restante dos arquivos para o diret\u00f3rio do aplicativo no cont\u00eainer.<\/li><li>Por fim, fornecemos o script para executar o aplicativo.<\/li><\/ol>\n\n\n\n<p>Agora vamos construir a imagem sobre o nosso cont\u00eainer:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ docker build -t docker-container-nodejs .<\/code><\/pre>\n\n\n\n<p>O comando usa o sinalizador -t para especificar o nome da imagem, e ent\u00e3o temos que fornecer o endere\u00e7o onde, ent\u00e3o, nosso Dockerfile est\u00e1 situado; uma vez que estamos no diret\u00f3rio enquanto executamos os comandos, podemos usar o ponto, que representa o diret\u00f3rio atual.<\/p>\n\n\n\n<p>Confirme agora se a imagem foi criada:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ docker images<\/code><\/pre>\n\n\n\n<p>A sa\u00edda dever\u00e1 ser aproximadamente essa:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"689\" height=\"94\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-28-33.png\" alt=\"\" class=\"wp-image-16806\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-28-33.png 689w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-28-33-300x41.png 300w\" sizes=\"auto, (max-width: 689px) 100vw, 689px\" \/><\/figure>\n\n\n\n<p>Para executar o docker cont\u00eainer com esta imagem, use o seguinte comando:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ docker run -d -p 8080:3000 -v address_to_app_locally:\/app docker-container-nodejs<\/code><\/pre>\n\n\n\n<p>E pronto s\u00f3 \u00e9 testar o endere\u00e7o em seu navegador colocando o ip:8080.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1006\" height=\"556\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-36-00.png\" alt=\"\" class=\"wp-image-16807\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-36-00.png 1006w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-36-00-300x166.png 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2022\/07\/Captura-de-tela-de-2022-07-15-15-36-00-768x424.png 768w\" sizes=\"auto, (max-width: 1006px) 100vw, 1006px\" \/><\/figure>\n\n\n\n<p>Pronto agora voc\u00ea pode verificar seu cont\u00eainer Docker funcionando normalmente.<\/p>\n\n\n\n<p><em><strong>E lembrando que a <a href=\"https:\/\/soloweb.com.br\">SOLOWEB<\/a> al\u00e9m de oferecer Hospedagem de Sites, Servidores Dedicados, Servidores VPS com o menor custo do Brasil, tamb\u00e9m desenvolve solu\u00e7\u00f5es de software e realiza gerenciamento e monitoramento de servidores para sua empresa, fa\u00e7a uma cota\u00e7\u00e3o sem custo, acesse: <a href=\"https:\/\/soloweb.com.br\/\">www.soloweb.com.br<\/a><\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na dica de hoje vamos ensinar como configurar um cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS de maneira simples e pr\u00e1tica.<\/p>\n","protected":false},"author":5,"featured_media":16813,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[120,227,25],"tags":[143,267,266,265,268,130],"class_list":["post-16800","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cwp","category-desempenho","category-geral","tag-centos","tag-composer","tag-conteiner","tag-docker","tag-node","tag-nodejs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Configurando cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS Centos 7 - SOLOWEB Tecnologia<\/title>\n<meta name=\"description\" content=\"Na dica de hoje vamos ensinar como configurar um cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS de maneira simples e pr\u00e1tica.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/soloweb.com.br\/blog\/2022\/07\/15\/configurando-conteiner-docker-para-aplicacoes-nodejs-centos-7\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Configurando cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS Centos 7 - SOLOWEB Tecnologia\" \/>\n<meta property=\"og:description\" content=\"Na dica de hoje vamos ensinar como configurar um cont\u00eainer Docker para aplica\u00e7\u00f5es NodeJS de maneira simples e pr\u00e1tica.\" \/>\n<meta property=\"og:url\" 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