Есть условное Node.js приложение, и неправильно написанный Dockerfile, который не будет кэшироваться и будет занимать много места. Нужно переписать его в соответствии с best practices.
#плохой файл FROM ubuntu:18.04 COPY ./src /app RUN apt-get update -y RUN apt-get install -y nodejs RUN npm install ENTRYPOINT ["npm"] CMD ["run", "prod"]
Вариант решения: FROM node:14.15.4-buster as BUILDER COPY ./src /build RUN npm install FROM node:14.15.4-alpine3.12 WORKDIR /app COPY --from=BUILDER /build/out /app CMD ["server.js"]
Есть условное Node.js приложение, и неправильно написанный Dockerfile, который не будет кэшироваться и будет занимать много места. Нужно переписать его в соответствии с best practices.
#плохой файл FROM ubuntu:18.04 COPY ./src /app RUN apt-get update -y RUN apt-get install -y nodejs RUN npm install ENTRYPOINT ["npm"] CMD ["run", "prod"]
Вариант решения: FROM node:14.15.4-buster as BUILDER COPY ./src /build RUN npm install FROM node:14.15.4-alpine3.12 WORKDIR /app COPY --from=BUILDER /build/out /app CMD ["server.js"]
BY Библиотека задач по DevOps | тесты, код, задания
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Telegram auto-delete message, expiring invites, and more
elegram is updating its messaging app with options for auto-deleting messages, expiring invite links, and new unlimited groups, the company shared in a blog post. Much like Signal, Telegram received a burst of new users in the confusion over WhatsApp’s privacy policy and now the company is adopting features that were already part of its competitors’ apps, features which offer more security and privacy. Auto-deleting messages were already possible in Telegram’s encrypted Secret Chats, but this new update for iOS and Android adds the option to make messages disappear in any kind of chat. Auto-delete can be enabled inside of chats, and set to delete either 24 hours or seven days after messages are sent. Auto-delete won’t remove every message though; if a message was sent before the feature was turned on, it’ll stick around. Telegram’s competitors have had similar features: WhatsApp introduced a feature in 2020 and Signal has had disappearing messages since at least 2016.
Telegram is riding high, adding tens of million of users this year. Now the bill is coming due.Telegram is one of the few significant social-media challengers to Facebook Inc., FB -1.90% on a trajectory toward one billion users active each month by the end of 2022, up from roughly 550 million today.
Библиотека задач по DevOps | тесты код задания from ms
