复制失败'/target/x86_64-unknown-linux-musl/release/microservice_app：没有这样的文件或目录'Rust Dockerfile

Question

我正在尝试运行这个 Docker 图片，我是 Docker 世界的新手。帮助赞赏:) 我正在尝试运行使用 Docker 在 Google Cloud 上使用 postgres 的简单 Rust 微服务。但是构建完成后，无法复制二进制文件。

Cargo.toml :

[package]
name = "home_made_rust"
version = "0.1.0"
edition = "2018"


[dependencies]
postgres = "0.17.5"

下面是我的Docker文件

# ------------------------------------------------------------------------------
# Cargo Build Stage
# ------------------------------------------------------------------------------

FROM rust:latest as builder

WORKDIR     /rust

# Download the cargo target
RUN         rustup target add x86_64-unknown-linux-musl

# create dummy application, s.t. cargo can download all dependencies
RUN         mkdir -p /rust/app/src && echo 'fn main(){}' > app/src/main.rs
WORKDIR     /rust/app

# Build & cache dependencies
COPY        Cargo.toml Cargo.lock ./
RUN         cargo build --release --target x86_64-unknown-linux-musl

# Copy application code
COPY        src ./src

# Build production binary
RUN         touch src/main.rs && cargo build --release --target x86_64-unknown-linux-musl

# Production container
FROM        scratch
COPY        --from=builder /rust/app/target/x86_64-unknown-linux-musl/release/microservice_app /app
ENTRYPOINT  ["/app"]

这是我的 Rust 项目结构

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        30-07-2020  07.36 PM                .github
d-----        30-07-2020  07.24 PM                src
d-----        30-07-2020  07.25 PM                target
-a----        30-07-2020  11.44 PM             19 .dockerignore
-a----        30-07-2020  07.24 PM              8 .gitignore
-a----        30-07-2020  10.58 PM          20573 Cargo.lock
-a----        30-07-2020  10.58 PM            250 Cargo.toml
-a----        31-07-2020  10.31 AM            974 Dockerfile

来自 github 操作的确切错误 ->

Step 11/12 : COPY        --from=builder /rust/app/target/x86_64-unknown-linux-musl/release/microservice_app /app
COPY failed: stat /var/lib/docker/overlay2/912bcbdb9b9198001ae5d1df4aec09ec54efb413fbb8981d165ee529ea9966a6/merged/rust/app/target/x86_64-unknown-linux-musl/release/microservice_app: no such file or directory
ERROR
ERROR: build step 0 "gcr.io/cloud-builders/docker" failed: step exited with non-zero status: 1

Answer 1

替换这个 COPY --from=builder /rust/app/target/x86_64-unknown-linux-musl/release/microservice_app /app

用这个=>

COPY        --from=builder /rust/app/target/x86_64-unknown-linux-musl/release/home_made_rust /app

二进制名称根据 Cargo.toml 文件

[package]
name = "home_made_rust"

复制失败'/target/x86_64-unknown-linux-musl/release/microservice_app：没有这样的文件或目录'Rust Dockerfile

Copy Failed '/target/x86_64-unknown-linux-musl/release/microservice_app: no such file or directory' Rust Dockerfile

rust

docker

google-cloud-platform

rust-cargo

dockerfile