Google Cloud Shell は Google Cloud Platform に登録すると使える Linux 環境です。Webブラウザ経由でのアクセスなので便利そうです。
Google Cloud Platform(GCP) への登録
登録には住所やクレジットカード番号が必要です。現在12ヶ月間（300ドル）の無料トライアル期間をやっているので、そちらを利用します。
触ってみる
ログインすると help を入力するといいよ、と言われたのでとりあえず打ってみます。
Welcome to Cloud Shell! Type "help" to get started. user@machine-id:~$ help Welcome to Google Cloud Shell, a tool for managing resources hosted on Google Cloud Platform! The machine comes pre-installed with the Google Cloud SDK and other popular developer tools. Your 5GB home directory will persist across sessions, but the VM is ephemeral and will be reset approximately 20 minutes after your session ends. No system-wide change will persist beyond that. Type "gcloud help" to get help on using Cloud SDK. For more examples, visit https://cloud.google.com/shell/docs/quickstart and https://cloud.google.com/shell/docs/examples Type "cloudshell help" to get help on using the "cloudshell" utility. Common functionality is aliased to short commands in your shell, for example, you can type "dl <filename>" at Bash prompt to download a file. Type "cloudshell aliases" to see these commands. Type "help" to see this message any time. Type "builtin help" to see Bash interpreter help.
5GB の保存領域が使えるようです。また、セッション断から20分経過すると環境がリセットされるそうです。ある意味検証環境には最適ですね。
GCP用のSDKもここから使えるようです。
PATH通ってるところを覗いて、何のコマンドが使えるのか確かめてみます。
user@machine-id:~$ echo $PATH | sed -e "s/:/\n/g" | xargs ls ls: cannot access '/home/nygmadm/gopath/bin': No such file or directory ls: cannot access '/google/google_appengine': No such file or directory /apache-maven-3.3.9/bin: m2.conf mvn mvn.cmd mvnDebug mvnDebug.cmd mvnyjp /bin: bash bzexe bzmore cpio dmesg fgrep gzip lessecho ls more nano ps rnano ss tar uname zcat zgrep bunzip2 bzfgrep cat dash dnsdomainname findmnt hostname lessfile lsblk mount netstat pwd run-parts stty tempfile uncompress zcmp zless bzcat bzgrep chgrp date domainname fuser ip lesskey lsmod mountpoint nisdomainname rbash sed su touch vdir zdiff zmore bzcmp bzip2 chmod dd echo grep kill lesspipe mkdir mt pidof readlink sh sync true wdctl zegrep znew bzdiff bzip2recover chown df egrep gunzip kmod ln mknod mt-gnu ping rm sh.distrib systemd-hwdb udevadm which zfgrep bzegrep bzless cp dir false gzexe less login mktemp mv ping6 rmdir sleep tailf umount ypdomainname zforce /google/go_appengine: appcfg.py bulkload_client.py dev_appserver.py goapp google lib _python_runtime.py run_tests.py wrapper_util.py backends_conversion.py bulkloader.py download_appstats.py godoc gopath LICENSE RELEASE_NOTES tools BUGS demos endpointscfg.py gofmt goroot php_cli.py RELEASE_NOTES.python VERSION /google/google-cloud-sdk/bin: bootstrapping bq cbt datalab dev_appserver.py docker-credential-gcloud docker-credential-gcr endpointscfg.py gcloud git-credential-gcloud.sh gsutil java_dev_appserver.sh kubectl /google/gopath/bin: aebundler aedeploy aefix guestbook helloworld /gradle-2.12/bin: gradle gradle.bat /sbin: agetty cfdisk dumpe2fs fsck.cramfs getty ip6tables-restore killall5 mkfs.bfs modinfo raw shadowconfig sysctl xtables-multi apparmor_parser chcpu e2fsck fsck.ext2 hwclock ip6tables-save ldconfig mkfs.cramfs modprobe resize2fs slattach tc zramctl badblocks ctrlaltdel e2image fsck.ext3 ifconfig ipmaddr logsave mkfs.ext2 nameif rmmod start-stop-daemon tipc blkdeactivate debugfs e2label fsck.ext4 initctl iptables losetup mkfs.ext3 pam_tally route sulogin tune2fs blkdiscard depmod e2undo fsck.minix insmod iptables-restore lsmod mkfs.ext4 pam_tally2 rtacct swaplabel udevadm blkid devlink fdisk fsfreeze installkernel iptables-save mii-tool mkfs.minix pivot_root rtmon swapoff unix_chkpwd blockdev dmsetup findfs fstab-decode ip iptunnel mke2fs mkhomedir_helper plipconfig runuser swapon unix_update bridge dmstats fsck fstrim ip6tables isosize mkfs mkswap rarp sfdisk switch_root wipefs /usr/bin: [ docker-runc gobject-query lslocks pager realpath update-alternatives 2to3 dotlockfile gold lslogins parallel recode-sr-latin update-mime-database 2to3-2.7 dotnet gpasswd lsns partx reindexdb update-mime-database.real 2to3-3.5 dpkg gpg lsof passwd rename uptime aa-enabled dpkg-architecture gpg2 lspgpot paste rename.ul users aa-exec dpkg-buildflags gpg-agent luit patch renice utmpdump aclocal dpkg-buildpackage gpgconf lxc-attach pathchk reset vacuumdb aclocal-1.15 dpkg-checkbuilddeps gpg-connect-agent 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ruby2.3 watch autoconf dpkg-source gsettings lxc-start pg_archivecleanup runcon watchgnupg autoheader dpkg-split gtbl lxc-stop pg_basebackup run-mailcap wc autom4te dpkg-statoverride gtester lxc-unfreeze pgbench rview wget automake dpkg-trigger gtester-report lxc-unshare pg_config rvim whatis automake-1.15 dpkg-vendor gtk-update-icon-cache lxc-usernsexec pg_config.libpq-dev savelog whereis autoreconf dropdb gulp lxc-wait pg_conftool schemagen which autoscan droplang h2ph lynx pg_createcluster scp who autoupdate dropuser h2xs lzcat pg_ctlcluster script whoami awk du hd lzcmp pg_dropcluster scriptreplay whois b2sum dwp head lzdiff pg_dump sdiff w.procps base32 ebrowse helpztags lzegrep pg_dumpall see write base64 ebrowse.emacs24 hexdump lzfgrep pg_isready select-editor wsgen basename echo_supervisord_conf hg lzgrep pg_lsclusters sensible-browser wsimport bashbug edit hg-ssh lzless pg_receivexlog sensible-editor www-browser bazel editor host lzma pg_recvlogical sensible-pager X11 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nproc python3 tty yes dh_python3 gio linux-check-removal npx python3.5 tzselect zdump diff gio-querymodules linux-update-symlinks nroff python3.5-config ucf zip diff3 git linux-version nsenter python3.5m ucfq zipcloak dig git-receive-pack listres nslookup python3.5m-config ucfr zipdetails dircolors git-shell lnstat nstat python3-config ul zipgrep dirmngr git-upload-archive locale nsupdate python3m unexpand zipinfo dirmngr-client git-upload-pack localedef numfmt python3m-config uniq zipnote dirname glib-compile-resources logger objcopy python-config unlink zipsplit docker glib-compile-schemas logname objdump pyversions unlzma zrun docker-containerd glib-genmarshal look ocsptool rake unmkinitramfs docker-containerd-ctr glib-gettextize lorder od ranlib unpack200 docker-containerd-shim glib-mkenums lsattr openssl rcp unshare dockerd gnutls-cli lscpu orbd rdoc unxz docker-init gnutls-cli-debug lsinitramfs p11tool rdoc2.3 unzip docker-proxy gnutls-serv lsipc pack200 readelf unzipsfx /usr/local/bin: apt-get console easy_install-2.7 gem ipython2 nvm pip2.7 pyrsa-encrypt-bigfile rackup ruby toco bundle dill_unpickle.py erb get_objgraph.py irb pasteurize pygmentize pyrsa-keygen rails saved_model_cli toco_from_protos bundler docker-compose f2py iptest markdown_py pbr pyrsa-decrypt pyrsa-priv2pub rake sprockets virtualenv chardetect docker-machine freeze_graph iptest2 minikube pip pyrsa-decrypt-bigfile pyrsa-sign rdoc tensorboard wheel cloudshell easy_install futurize ipython nokogiri pip2 pyrsa-encrypt pyrsa-verify ri thor /usr/local/go/bin: go godoc gofmt /usr/local/nvm/versions/node/v8.5.0/bin: bower firebase functions functions-emulator grunt gulp node nodemon npm npx vows /usr/local/sbin: /usr/sbin: aa-remove-unknown applygnupgdefaults cron fdformat grpconv ldattach pam-auth-update pwck rtcwake update-initramfs usermod aa-status arp delgroup filefrag grpunconv locale-gen pam_getenv pwconv service update-java-alternatives validlocale accessdb arpd deluser genl iconvconfig make-ssl-cert pam_timestamp_check pwunconv sshd update-locale vigr addgnupghome chgpasswd dpkg-preconfigure groupadd init.lxc mkinitramfs pg_updatedicts readprofile tarcat update-mime vipw addgroup chpasswd dpkg-reconfigure groupdel init.lxc.static mklost+found php5dismod remove-shell tunelp update-passwd visudo add-shell chroot e2freefrag groupmems invoke-rc.d newusers php5enmod rmt tzconfig update-rc.d zic adduser cpgr e4crypt groupmod ip6tables-apply nfnl_osf php5query rmt-tar update-ca-certificates useradd apparmor_status cppw e4defrag grpck iptables-apply nologin policy-rc.d rsyslogd update-icon-caches userdel user@machine-id:~$
dockerも使えるようなので、個人的には嬉しい。
user@machine-id:~$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
ca4f61b1923c: Pull complete
Digest: sha256:66ef312bbac49c39a89aa9bcc3cb4f3c9e7de3788c944158df3ee0176d32b751
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://cloud.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/
user@machine-id:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
user@machine-id:~$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
他にもインストールとか普通にできるので、結構楽しめそうなおもちゃが出来上がりました。
