sprites

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🇺🇸

Original

English
🇨🇳

Translation

Chinese
You are managing remote Sprite VMs from a local machine using the
sprite
CLI. Sprites are persistent, hardware-isolated Linux VMs on Fly.io with durable filesystems backed by object storage.
你可以通过
sprite
CLI从本地机器管理远程Sprite虚拟机。Sprite是Fly.io上的持久化、硬件隔离的Linux虚拟机,其持久化文件系统由对象存储提供支持。

CLI Basics

CLI基础

The
sprite
CLI controls remote Sprites. The
-s
flag specifies which Sprite,
-o
specifies the org.
bash
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sprite
CLI用于控制远程Sprite。
-s
标志指定目标Sprite,
-o
指定组织。
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List all sprites

List all sprites

sprite list
sprite list

Execute a command on a sprite (blocks until done)

Execute a command on a sprite (blocks until done)

sprite exec -s <name> -- <command>
sprite exec -s <name> -- <command>

Open interactive shell

Open interactive shell

sprite console -s <name>
sprite console -s <name>

Activate a sprite for the current directory (creates .sprite file)

Activate a sprite for the current directory (creates .sprite file)

sprite use <name>

When a `.sprite` file exists in the working directory, `-s` can be omitted.
sprite use <name>

当工作目录中存在`.sprite`文件时,可以省略`-s`参数。

Executing Commands

执行命令

sprite exec
is the primary tool for remote work. Stdout and stderr are returned to the local terminal.
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sprite exec
是进行远程操作的主要工具。标准输出和标准错误会返回至本地终端。
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Run a single command

Run a single command

sprite exec -s mysprite -- ls -la /home/sprite
sprite exec -s mysprite -- ls -la /home/sprite

Run a multi-part command (quote or use --)

Run a multi-part command (quote or use --)

sprite exec -s mysprite -- bash -c "cd /project && npm test"
sprite exec -s mysprite -- bash -c "cd /project && npm test"

Pipe output locally

Pipe output locally

sprite exec -s mysprite -- cat /path/to/file > local-copy.txt

**Important:** Each `sprite exec` invocation is a separate session. Environment variables, working directory, and shell state do not persist between calls. For stateful work, use `bash -c "..."` to chain commands, or use `sprite console` for interactive sessions.
sprite exec -s mysprite -- cat /path/to/file > local-copy.txt

**重要提示:** 每次`sprite exec`调用都是一个独立会话。环境变量、工作目录和shell状态不会在调用之间保留。如需进行有状态的工作,可以使用`bash -c "..."`来链式执行命令,或使用`sprite console`进入交互式会话。

File Transfer

文件传输

There is no dedicated file transfer command. Use
sprite exec
with
cat
for pulling files, or pipe content in:
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目前没有专门的文件传输命令。可以结合
sprite exec
cat
来拉取文件,或通过管道传入内容:
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Pull a file from a sprite

Pull a file from a sprite

sprite exec -s mysprite -- cat /path/on/sprite > local-file.txt
sprite exec -s mysprite -- cat /path/on/sprite > local-file.txt

Pull a binary file

Pull a binary file

sprite exec -s mysprite -- base64 /path/to/binary | base64 -d > local-file.bin
sprite exec -s mysprite -- base64 /path/to/binary | base64 -d > local-file.bin

Push a file to a sprite (via stdin)

Push a file to a sprite (via stdin)

cat local-file.txt | sprite exec -s mysprite -- bash -c "cat > /path/on/sprite"
cat local-file.txt | sprite exec -s mysprite -- bash -c "cat > /path/on/sprite"

For heavier file work, use SSHFS via proxy

For heavier file work, use SSHFS via proxy

sprite proxy 2222 # then sshfs sprite@localhost:/home/sprite /mnt/sprite -p 2222
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sprite proxy 2222 # then sshfs sprite@localhost:/home/sprite /mnt/sprite -p 2222
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Checkpoints

检查点

Checkpoints capture the writable overlay of the Sprite's filesystem. They are fast (sub-second, copy-on-write) and cheap.
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检查点会捕获Sprite文件系统的可写覆盖层。它们创建速度快(亚秒级,写时复制)且成本极低。
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Create a checkpoint (with optional comment)

Create a checkpoint (with optional comment)

sprite checkpoint create -s mysprite sprite checkpoint create -s mysprite -m "before risky refactor"
sprite checkpoint create -s mysprite sprite checkpoint create -s mysprite -m "before risky refactor"

List checkpoints

List checkpoints

sprite checkpoint list -s mysprite
sprite checkpoint list -s mysprite

Restore to a checkpoint (destructive — drops current session and all changes since)

Restore to a checkpoint (destructive — drops current session and all changes since)

sprite restore <checkpoint-id> -s mysprite

**Checkpoint aggressively.** Before any risky operation, before switching contexts, whenever something is working. Checkpoints are nearly free.

The last 5 checkpoints are also mounted inside the Sprite at `/.sprite/checkpoints/` for direct file-level inspection without restoring.
sprite restore <checkpoint-id> -s mysprite

**频繁创建检查点。** 在进行任何有风险的操作前、切换工作环境前,或是在功能正常运行时都应创建。检查点的成本几乎可以忽略不计。

最近的5个检查点会挂载到Sprite内部的`/.sprite/checkpoints/`路径下,无需恢复即可直接进行文件级别的检查。

Networking

网络

Each Sprite gets a public HTTPS URL at
https://<name>-<org>.sprites.dev/
, routing to port 8080 by default.
bash
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每个Sprite都会获得一个公共HTTPS地址
https://<name>-<org>.sprites.dev/
,默认路由到8080端口。
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Show the sprite's URL and auth mode

Show the sprite's URL and auth mode

sprite url -s mysprite
sprite url -s mysprite

Make the URL public (no auth required)

Make the URL public (no auth required)

sprite url update --auth public -s mysprite
sprite url update --auth public -s mysprite

Restore authenticated mode

Restore authenticated mode

sprite url update --auth default -s mysprite
sprite url update --auth default -s mysprite

Forward remote ports to local machine

Forward remote ports to local machine

sprite proxy 8080 3000 -s mysprite

Network egress policy is managed via the Sprites REST API, not the CLI:

```bash
sprite proxy 8080 3000 -s mysprite

网络出站策略通过Sprites REST API管理,而非CLI:

```bash

View current network policy (from inside the sprite)

View current network policy (from inside the sprite)

sprite exec -s mysprite -- cat /.sprite/policy/network.json
sprite exec -s mysprite -- cat /.sprite/policy/network.json

Update network policy (from outside, via API)

Update network policy (from outside, via API)

sprite api -s mysprite POST /policy/network
-d '{"rules": [{"include": "defaults"}, {"domain": "custom-api.com", "action": "allow"}]}'

Network policy can only be modified externally. The Sprite cannot change its own policy.
sprite api -s mysprite POST /policy/network
-d '{"rules": [{"include": "defaults"}, {"domain": "custom-api.com", "action": "allow"}]}'

网络策略只能从外部修改。Sprite无法自行更改其策略。

Services

服务

Services are long-running processes inside a Sprite that persist across reboots and hibernation.
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服务是Sprite内部的长期运行进程,会在重启和休眠后继续存在。
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List services

List services

sprite exec -s mysprite -- sprite-env services list
sprite exec -s mysprite -- sprite-env services list

Create a service

Create a service

sprite exec -s mysprite -- sprite-env services create <name> --cmd <binary> --args "<args>"
sprite exec -s mysprite -- sprite-env services create <name> --cmd <binary> --args "<args>"

Get service status

Get service status

sprite exec -s mysprite -- sprite-env services get <name>
sprite exec -s mysprite -- sprite-env services get <name>

View service logs

View service logs

sprite exec -s mysprite -- cat /.sprite/logs/services/<name>.stderr.log

One service can be designated as the HTTP service (receives proxied requests on the Sprite's URL).
sprite exec -s mysprite -- cat /.sprite/logs/services/<name>.stderr.log

可以将一个服务指定为HTTP服务(接收Sprite URL的代理请求)。

Multi-Sprite Coordination

多Sprite协调

When working across multiple Sprites, use
sprite list
to see the fleet, then target each by name:
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当需要在多个Sprite之间工作时,使用
sprite list
查看所有Sprite,然后通过名称定位每个Sprite:
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Run the same command across all sprites

Run the same command across all sprites

for s in $(sprite list); do echo "=== $s ===" sprite exec -s "$s" -- <command> done

Each Sprite is fully isolated — no shared mutable state. Coordinate through explicit communication: files in shared Tigris buckets, HTTP endpoints, or Git repos.
for s in $(sprite list); do echo "=== $s ===" sprite exec -s "$s" -- <command> done

每个Sprite都是完全隔离的——没有共享的可变状态。可以通过显式通信进行协调:比如使用共享Tigris存储桶中的文件、HTTP端点或Git仓库。

Lifecycle

生命周期

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Create a new sprite

Create a new sprite

sprite create <name> sprite create -o <org> <name>
sprite create <name> sprite create -o <org> <name>

Destroy a sprite (irreversible)

Destroy a sprite (irreversible)

sprite destroy <name>

Sprites auto-sleep when idle (no active commands, TCP connections, TTY sessions, or running Services). They wake automatically on the next `sprite exec`, `sprite console`, or HTTP request to their URL. Anything on disk persists across sleep cycles. Running processes do not — use Services for daemons.
sprite destroy <name>

当Sprite处于空闲状态(无活跃命令、TCP连接、TTY会话或运行中的服务)时,会自动进入休眠。下次执行`sprite exec`、`sprite console`或向其URL发送HTTP请求时,会自动唤醒。磁盘上的所有内容会在休眠周期中保留,但运行中的进程不会——如需后台服务请使用Services。

Internal Sprite Paths

Sprite内部路径

When running commands on a Sprite, these paths are useful:
  • /.sprite/api.sock
    — internal API Unix socket
  • /.sprite/policy/network.json
    — read-only network policy
  • /.sprite/checkpoints/
    — last 5 checkpoints mounted for inspection
  • /.sprite/logs/services/
    — service logs
  • /.sprite/docs/
    — platform documentation (agent-context.md, languages.md, docker.md)
  • /home/sprite/
    — user home directory
在Sprite上执行命令时,以下路径会很有用:
  • /.sprite/api.sock
    — 内部API Unix套接字
  • /.sprite/policy/network.json
    — 只读网络策略
  • /.sprite/checkpoints/
    — 挂载的最近5个检查点,用于检查
  • /.sprite/logs/services/
    — 服务日志
  • /.sprite/docs/
    — 平台文档(agent-context.md, languages.md, docker.md)
  • /home/sprite/
    — 用户主目录