Fly.io 使ってみる

brew install flyctl

flyctl auth login

% flyctl launch --image flyio/hellofly:latest
Creating app in /Users/oppara/sandbox/flyio/hellofly
Using image flyio/hellofly:latest
? App Name (leave blank to use an auto-generated name): hellofly
Automatically selected personal organization: oppara
? Select region: nrt (Tokyo, Japan)
Error Validation failed: Name has already been taken

% flyctl launch --image flyio/hellofly:latest
Creating app in /Users/oppara/sandbox/flyio/hellofly
Using image flyio/hellofly:latest
? App Name (leave blank to use an auto-generated name):
Automatically selected personal organization: oppara
? Select region: nrt (Tokyo, Japan)
Created app still-voice-2717 in organization personal
Wrote config file fly.toml
? Would you like to set up a Postgresql database now? No
? Would you like to deploy now? No
Your app is ready. Deploy with `flyctl deploy`

# fly.toml file generated for still-voice-2717 on 2022-10-10T00:30:30Z

app = "still-voice-2717"
kill_signal = "SIGINT"
kill_timeout = 5
processes = []

[build]
  image = "flyio/hellofly:latest"

[env]

[experimental]
  allowed_public_ports = []
  auto_rollback = true

[[services]]
  http_checks = []
  internal_port = 8080
  processes = ["app"]
  protocol = "tcp"
  script_checks = []
  [services.concurrency]
    hard_limit = 25
    soft_limit = 20
    type = "connections"

  [[services.ports]]
    force_https = true
    handlers = ["http"]
    port = 80

  [[services.ports]]
    handlers = ["tls", "http"]
    port = 443

  [[services.tcp_checks]]
    grace_period = "1s"
    interval = "15s"
    restart_limit = 0
    timeout = "2s"

% flyctl deploy
==> Verifying app config
--> Verified app config
==> Building image
Searching for image 'flyio/hellofly:latest' remotely...
image found: img_z1nr0lpjz9v5q98w
==> Creating release
Error We need your payment information to continue! Add a credit card or buy credit: https://fly.io/dashboard/oppara/billing

% flyctl deploy
==> Verifying app config
--> Verified app config
==> Building image
Searching for image 'flyio/hellofly:latest' remotely...
image found: img_z1nr0lpjz9v5q98w
==> Creating release
--> release v2 created

--> You can detach the terminal anytime without stopping the deployment
==> Monitoring deployment

 1 desired, 1 placed, 1 healthy, 0 unhealthy [health checks: 1 total, 1 passing]
--> v0 deployed successfully

% flyctl status
App
  Name     = still-voice-2717
  Owner    = personal
  Version  = 0
  Status   = running
  Hostname = still-voice-2717.fly.dev
  Platform = nomad

Deployment Status
  ID          = dc1ddaef-31d5-c2c2-c910-e6edf4012136
  Version     = v0
  Status      = successful
  Description = Deployment completed successfully
  Instances   = 1 desired, 1 placed, 1 healthy, 0 unhealthy

Instances
ID              PROCESS VERSION REGION  DESIRED STATUS  HEALTH CHECKS           RESTARTS        CREATED
6225b279        app     0       nrt     run     running 1 total, 1 passing      0               1m14s ago

% flyctl open
opening http://still-voice-2717.fly.dev ...

% flyctl logs
2022-10-10T07:47:25Z runner[6225b279] nrt [info]Starting instance
2022-10-10T07:47:25Z runner[6225b279] nrt [info]Configuring virtual machine
2022-10-10T07:47:25Z runner[6225b279] nrt [info]Pulling container image
2022-10-10T07:47:27Z runner[6225b279] nrt [info]Unpacking image
2022-10-10T07:47:27Z runner[6225b279] nrt [info]Preparing kernel init
2022-10-10T07:47:27Z runner[6225b279] nrt [info]Configuring firecracker
2022-10-10T07:47:27Z runner[6225b279] nrt [info]Starting virtual machine
2022-10-10T07:47:28Z app[6225b279] nrt [info]Starting init (commit: 249766e)...
2022-10-10T07:47:28Z app[6225b279] nrt [info]Preparing to run: `/goapp/app` as root
2022-10-10T07:47:28Z app[6225b279] nrt [info]2022/10/10 07:47:28 listening on [fdaa:0:b6fe:a7b:xxxx:xxxx:xxxx:2]:22 (DNS: [fdaa::3]:53)
2022-10-10T07:47:28Z app[6225b279] nrt [info][GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.
2022-10-10T07:47:28Z app[6225b279] nrt [info][GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
2022-10-10T07:47:28Z app[6225b279] nrt [info] - using env:      export GIN_MODE=release
2022-10-10T07:47:28Z app[6225b279] nrt [info] - using code:     gin.SetMode(gin.ReleaseMode)
2022-10-10T07:47:28Z app[6225b279] nrt [info][GIN-debug] Loaded HTML Templates (2):
2022-10-10T07:47:28Z app[6225b279] nrt [info]   -
2022-10-10T07:47:28Z app[6225b279] nrt [info]   - hellofly.tmpl
2022-10-10T07:47:28Z app[6225b279] nrt [info][GIN-debug] GET    /                         --> main.handleIndex (3 handlers)
2022-10-10T07:47:28Z app[6225b279] nrt [info][GIN-debug] GET    /:name                    --> main.handleIndex (3 handlers)
2022-10-10T07:47:28Z app[6225b279] nrt [info][GIN-debug] Listening and serving HTTP on :8080
2022-10-10T07:50:01Z app[6225b279] nrt [info][GIN] 2022/10/10 - 07:50:01 | 200 |    1.637812ms |  126.55.xxx.xxx | GET      /
2022-10-10T07:50:01Z app[6225b279] nrt [info][GIN] 2022/10/10 - 07:50:01 | 200 |     290.185µs |  126.55.xxx.xxx | GET      /favicon.ico

% flyctl ssh console
Connecting to top1.nearest.of.still-voice-2717.internal... complete
Error error connecting to SSH server: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

% flyctl auth token
xxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

% flyctl ssh console -t xxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Connecting to top1.nearest.of.still-voice-2717.internal... complete
/ # cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.12.0
PRETTY_NAME="Alpine Linux v3.12"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://bugs.alpinelinux.org/"
/ # exit

% flyctl list apps
  NAME             | STATUS  | ORG      | DEPLOYED
-------------------*---------*----------*-----------------
  still-voice-2717 | running | personal | 17 minutes ago

% flyctl destroy still-voice-2717
Destroying an app is not reversible.
? Destroy app still-voice-2717? Yes
Destroyed app still-voice-2717

%  flyctl list apps
  NAME | STATUS | ORG | DEPLOYED
-------*--------*-----*-----------