docker

K8s done right Part 1: start from helm charts

K8s is a very complex beast. But it give you a very good set of security defaults, and it is also a very well done implementation of a microservice application. After installing Docker Swarm on some Customer, we are giving up on Swarm because the Enterprise version was acquired by Mirantis and now is marketed …

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Oracle cloud: non c’è due senza tre e il quarto vien da sé

Dopo Amazon, Google  e Azure, anche Oracle è entrata nel mercato Cloud. Nell’ultimo periodo Oracle Cloud propone in modo aggressivo con lo slogan “Always Free” una serie di risorse che saranno sempre disponibili senza accrediti ulteriori. Ovviamente non è tutto oro quello che luccica ma…abbiamo fatto un paio di prove per saggiare questo servizio.

Mail Server on Docker (UPDATED)

Hosting your own email server is not a mandatory task; it increase your attack surface too. But relaying too much on big emails provider (Gmail, Outlook, Aruba, Fastmail) could be a risk for our democracy. For instance, who decide how Spam is managed (i.e. what could be a Spam email)? Can we trust big providers? Email …

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Docker tips

Use docker in docker to drive docker from a container Working under windows, sometimes docker slow down. Sometimes you need to access to the MobyVM. With this line: docker run --rm -ti -v "/var/run/docker.sock:/var/run/docker.sock" -v /:/host docker sh you run a container which will removed upon exit. This container can access to docker daemon (via …

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Docker Shadow of Lights on Raspberry Pi 2/3

Cloud, DevOps, and Microservices are three strong forces are melting together. Containers is the key technology around them. Before docker, horizontal scaling via VM spinning was feasible but a slow speed, compared to the speed of a docker container boot. So do you want to learn docker without going out of business? Let’s go! So if …

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Docker & containers: uso ideale

Docker is a tool that can package an application and its dependencies in a virtual container that can run on any Linux server. This helps enable flexibility and portability on where the application can run, whether on premises, public cloud, private cloud, bare metal, etc. Da https://en.wikipedia.org/wiki/Docker_(software) Docker e la “containerizzazione” sono l’evoluzione di due tecnologie molto “antiche”: