Snappy Ubuntu Coreがリリースされたので、Vagrant上で起動してみる。それだけの記事。
Boxを探す
Ubuntu Snappyのイメージを探す。オフィシャルなものが２つほど見つかる。 ubuntu-15.04-snappy-core-stableというのが安定版のようなのでそちらを使うことにする。
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インストール、起動
$ cd [任意のディレクトリ] $ vagrant init ubuntu/ubuntu-15.04-snappy-core-stable ...output 省略 $ vagrant up ...output 省略
これで起動した。
確認
SSHで接続してみる。
$ vagrant ssh Welcome to Ubuntu 15.04 (GNU/Linux 3.19.0-15-generic x86_64) * Documentation: https://help.ubuntu.com/ Welcome to snappy Ubuntu Core, a transactionally updated Ubuntu. * See https://ubuntu.com/snappy It's a brave new world here in snappy Ubuntu Core! This machine does not use apt-get or deb packages. Please see 'snappy --help' for app installation and transactional updates.
apt-get はもう使わないんだぜとかいてある。 snappy --help 見ろというので確認してみることにしよう。
snappyコマンド
snappy コマンドを使って色々とやるらしい。
$ which snappy /usr/bin/snappy
$ snappy --help Usage: snappy [OPTIONS] <command> Help Options: -h, --help Show this help message Available commands: booted Flag that rootfs booted successfully build Builds a snap package (aliases: bu) config Set configuraion for a installed package. firstboot internal hw-assign Assign a hardware device to a package hw-info List assigned hardware device for a package hw-unassign Unassign a hardware device to a package info Display a summary of key attributes of the snappy system. install Install a snap package internal-run-hooks internal internal-unpack internal list List active components installed on a snappy system (aliases: li) login Log into the store purge Remove all the data from the listed packages remove Remove a snapp part rollback Rollback to a previous version of a package search Search for packages to install (aliases: se) set Set properties of system or package update Update all installed parts versions (deprecated) please use "list"
各コマンドのヘルプは snappy [command] --help で確認できる。
$ snappy list --help
Usage:
snappy [OPTIONS] list [list-OPTIONS]
Provides a list of all active components installed on a snappy system
If requested, the command will find out if there are updates for any of the
components and indicate that by appending a * to the date. This will be slower as it requires a round trip to the app store on the network.
The
developer information refers to non-mainline versions of a package (much like PPAs in deb-based Ubuntu). If the package is the primary version of that
package in Ubuntu then the developer info is not shown. This allows one to identify packages which have custom, non-standard versions installed. As a
special case, the “sideload” developer refers to packages installed manually on the system.
When a verbose listing is requested, information
about the channel used is displayed; which is one of alpha, beta, rc or stable, and all fields are fully expanded too. In some cases, older (inactive)
versions of snappy packages will be installed, these will be shown in the verbose output and the active version indicated with a * appended to the
name of the component.
Help Options:
-h, --help Show this help message
[list command options]
-u, --updates Show available updates (requires network)
-v, --verbose Show channel information and expand all fields
snappy search
ストアか利用可能なパッケージを探すコマンド。
$ snappy search --help
Usage:
snappy [OPTIONS] search [search-OPTIONS]
Query the store for available packages
Help Options:
-h, --help Show this help message
[search command options]
--show-all Show all available forks of a package
--show-all で全て表示してくれるっぽいので実行してみる。
$ snappy search --show-all Name Version Summary crossbar.crossbar 0.10.4 Crossbar.io gumstix-overo.ash 0.1 gumstix-overo webcam-demo 1.0.1 webcam-demo pi2.lool 0.11 pi2 go-example-webserver 1.0.6 go-example-webserver config-example 1.0.5 config-example pastebinit.mvo 1.4.0.0.2 pastebinit hello-dbus-fwk.canonical 1.0.0 hello-dbus-fwk docker 1.6.0.003 Docker 8nzc1x4iim2xj1g2ul64 43 Returns for store credit only. system-status.victor 1.0.3 System status web portal webdm 0.5 webdm beagleblack 1.7 beagleblack hello-world 1.0.14 hello-world hello-world.jdstrand 1.5.1 hello-world generic-amd64 1.1 generic-amd64 xkcd-webserver 0.4 xkcd-webserver
dockerがいるな。Docker Imageで使用するためにSnappyを使おうと思っていたけどSnappy自身もDockerのホストとして使えるのか。
他には hello-world、go-example-webserver あたりが気になったので入れてみる。
$ sudo snappy install docker sudo: unable to resolve host ubuntu-core-stable-2 Installing docker Starting download of docker 8.36 MB / 8.36 MB [==============================================================================================================] 100.00 % 79.07 KB/s Done Name Date Version Developer ubuntu-core 2015-04-23 2 ubuntu docker 2015-05-02 1.6.0.003 generic-amd64 2015-04-23 1.1
sudoコマンドを使うとhost名解決ができないといって怒られるがインストールはできる。 上記3点を入れた後の状態。
$ snappy list Name Date Version Developer ubuntu-core 2015-04-23 2 ubuntu docker 2015-05-02 1.6.0.003 go-example-webserver 2015-05-02 1.0.6 canonical hello-world 2015-05-02 1.0.14 canonical generic-amd64 2015-04-23 1.1
とりあえずdocker入れたのであとはどうとでもなりそうだけど、 Snappy自体がなんのこっちゃか分かってないので続きはまた今度。
