Pratique du Shadowing: Docker in 100 Seconds - Apprendre l'anglais à l'oral avec la vidéo

Création de la leçon...
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Docker, a tool that can package software into containers that run reliably in any environment.
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But what is a container and why do you need one?
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Let's imagine you built an app with COBOL that runs on some weird flavor of Linux.
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You want to share this app with your friend, but he has an entirely different system.
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So the problem becomes, how do we replicate the environment our software needs on any machine?
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One way to package an app is with a virtual machine, where the hardware is simulated then installed with the required OS and dependencies.
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This allows us to run multiple apps on the same infrastructure, however, because each VM is running its own operating system, they tend to be bulky and slow.
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Now, a Docker container is conceptually very similar to a VM with one key difference.
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Instead of virtualizing hardware, containers only virtualize the OS.
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Or in other words, all apps or containers are run by a single kernel, and this makes almost everything faster and more efficient.
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There are three fundamental elements in the universe of Docker.
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The Dockerfile, the image, and the container.
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The Dockerfile is like DNA, it's just code that tells Docker how to build an image, which itself is a snapshot of your software,
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along with all of its dependencies down to the operating system level.
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The image is immutable and it can be used to spin up multiple containers, which is your actual software running in the real world.
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Create a Dockerfile and use from to start from an existing template like Ubuntu.
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This base image gets pulled down from the cloud, and you can also upload your own images to a variety of different Docker registries.
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From there, you might want to use run to run a terminal command that installs dependencies into your image.
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You can set environment variables and do all kinds of other stuff, then the last thing you'll do is set a default command that's executed when you start up a container.
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And now, we can create the image file by running the docker build command.
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It goes through each step in our Docker file to build the image layer by layer.
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We can then bring this image to life as a container with the docker run command.
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As your app demands more resources, you can run it on multiple machines, multiple clouds, on-prem, or wherever you want reliably.
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This has been Docker in 100 seconds.
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If you enjoyed it, make sure to like and subscribe, and stay tuned for more Docker content coming to this channel soon.
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Thanks for watching, and I will see you in the next one.

Vocabulaire et conseils d’expression pour cette leçon

Cette vidéo contient 26 phrases et 446 mots à répéter en shadowing. La partie parlée dure 1:59. Le locuteur parle vite, environ 225 mots par minute : attendez-vous à des liaisons et à des sons réduits. Seuls 80 % des mots font partie des 3 000 mots les plus courants en anglais, le vocabulaire est donc exigeant.

Vocabulaire clé de cette vidéo

15 mots moins courants de la vidéo, avec leur prononciation et leur sens :

  • container /kənˈteɪ.nəɹ/ (nom) — récipient, contenant. An item in which objects, materials or data can be stored or transported.
  • cloud /ˈklaʊ̯d/ (nom) — nuage. A visible mass of water droplets suspended in the air.
  • package /ˈpæk.ɪd͡ʒ/ (nom) — paquet, paquetage. Something which is packed, a parcel, a box, an envelope.
  • layer /ˈleɪ̯ɚ/ (nom) — couche. A single thickness of some material covering a surface.
  • hardware /ˈhɑɹdˌwɛɹ/ (nom) — équipement. Fixtures, equipment, fasteners, tools, and devices used for general-purpose construction and repair of a structure or object. Also such equipment as sold as…
  • element /ˈɛləmənt/ (nom) — élément. One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based.
  • infrastructure /ˈɪnfɹəˌstɹʌkt͡ʃə/ (nom) — infrastructure. An underlying base or foundation for a building, organization, or system.
  • efficient /ɪˈfɪʃənt/ (adjectif) — efficace. Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.
  • resource /ɹɪˈzɔːs/ (nom) — ressource. Something that one uses to achieve an objective, e.g. raw materials or personnel.
  • spin /spɪn/ (verbe) — tournoyer, pivoter rapidement. To rotate, revolve, gyrate (usually quickly); to partially or completely rotate to face another direction.
  • fundamental /ˌfʌn.dəˈmɛn.təl/ (adjectif) — fondamental. Related to a foundation, base, or basis; serving as a foundation.
  • virtual /ˈvɜɹt͡ʃuəl/ (adjectif) — virtuel. In effect or essence, rather than in fact or reality; also, imitated, simulated.
  • terminal /ˈtɚmɪnəl/ (nom) — terminal, aérogare. A building in an airport where passengers transfer from ground transportation to the facilities that allow them to board airplanes.
  • default /dɪˈfɔlt/ (nom) — défaut, non-respect. The condition of failing to meet an obligation.
  • tune /tjuːn/ (nom) — mélodie, air. A melody.

Les verbes à particule que vous entendrez

  • go through (verbe) — traverser. To travel from one end of something to the other.
  • running in (nom) — rodage. The operating of a new engine (especially that of a motor vehicle) at less than its normal speed until proper working has been established.
  • step in (verbe) — remplacer, substituer. To act as a replacement or substitute.

Prononciation à surveiller

  • Les sons « sh » et « zh »: efficient /ɪˈfɪʃənt/, snapshot /ˈsnæpʃɒt/
  • Mots longs — placez bien l’accent: dependency /dɪˈpɛndənsi/, infrastructure /ˈɪnfɹəˌstɹʌkt͡ʃə/, fundamental /ˌfʌn.dəˈmɛn.təl/, conceptually /kənˈsɛp.tjʊə.li/

Comment s’entraîner avec cette vidéo

  1. Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
  2. Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
  3. Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme container, cloud, package.

Qu'est-ce que la technique du Shadowing ?

Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.

Technique du shadowing : lire le guide complet étape par étape →