April 2025
Intermediate to advanced
200 pages
5h 57m
Portuguese (Portugal, Brazil)
Content preview from Segurança de contentores
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Capítulo 1. Ameaças à segurança dos contentores
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Nos últimos anos, a utilização de contentores explodiu. Os conceitos em torno dos contentores já existiam há vários anos antes do Docker, mas a maioria dos observadores concorda que foram as ferramentas de linha de comandos fáceis de utilizar do Docker que começaram a popularizar os contentores entre a comunidade de programadores a partir do seu lançamento em 2013.
Os contentores trazem muitas vantagens : tal como descrito no slogan original do Docker, permitem-te "construir uma vez, executar em qualquer lugar". Fazem isto juntando uma aplicação e todas as suas dependências e isolando a aplicação do resto da máquina onde está a ser executada. A aplicação contentorizada tem tudo o que precisa e é fácil de empacotar como uma imagem de contentor que será executada da mesma forma no meu portátil e no teu, ou num servidor num centro de dados.
Um efeito indireto deste isolamento é que podes executar vários contentores diferentes lado a lado sem que interfiram uns com os outros. Antes dos containers, podias facilmente acabar com um pesadelo de dependências onde duas aplicações requeriam versões diferentes dos mesmos pacotes. A solução mais fácil para este problema era simplesmente executar as aplicações em máquinas separadas. Com os contêineres, as dependências são isoladas umas das outras, então fica fácil executar vários ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.