Docker Swift应用示例
Docker Swift 应用程序示例
Docker 允许我们执行 Swift 应用程序。在以下示例中，我们将创建一个使用 Docker 运行的 swift 文件。它由以下步骤组成:
创建一个目录来组织应用程序文件。
更改目录
创建 Dockerfile
需要包含Docker用来创建镜像的必要Docker指令。
//Dockerfile
FROM ubuntu:16.04
MAINTAINER Haris Amin <aminharis7@gmail.com>
# Install related packages and set LLVM 3.6 as the compiler
RUN apt-get-q update && \
apt-get-q install-y \
make \
libc6-dev \
clang-3.6 \
curl \
libedit-dev \
python2.7 \
python2.7-dev \
libicu-dev \
rsync \
libxml2 \
git \
libcurl4-openssl-dev \
&& update-alternatives--quiet--install /usr/bin/clang clang /usr/bin/clang-3.6 100 \
&& update-alternatives--quiet--install /usr/bin/clang++ clang++ /usr/bin/clang++-3.6 100 \
&& rm-r /var/lib/apt/lists/*
# Everything up to here should cache nicely between Swift versions, assuming dev dependencies change little
ENV SWIFT_BRANCH=swift-3.0.2-release \
SWIFT_VERSION=swift-3.0.2-RELEASE \
SWIFT_PLATFORM=ubuntu16.04 \
PATH=/usr/bin:$PATH
# Download GPG keys, signature and Swift package, then unpack and cleanup
RUN SWIFT_URL=https://swift.org/builds/$SWIFT_BRANCH/$(echo "$SWIFT_PLATFORM" | tr-d .)/$SWIFT_VERSION/$SWIFT_VERSION-$SWIFT_PLATFORM.tar.gz \
&& curl-fSsL $SWIFT_URL-o swift.tar.gz \
&& curl-fSsL $SWIFT_URL.sig-o swift.tar.gz.sig \
&& export GNUPGHOME="$(mktemp-d)" \
&& set-e; \
for key in \
# pub 4096R/412B37AD 2015-11-19 [expires: 2017-11-18]
# Key fingerprint = 7463 A81A 4B2E EA1B 551F FBCF D441 C977 412B 37AD
# uid Swift Automatic Signing Key #1 <swift-infrastructure@swift.org>
7463A81A4B2EEA1B551FFBCFD441C977412B37AD \
# pub 4096R/21A56D5F 2015-11-28 [expires: 2017-11-27]
# Key fingerprint = 1BE1 E29A 084C B305 F397 D62A 9F59 7F4D 21A5 6D5F
# uid Swift 2.2 Release Signing Key <swift-infrastructure@swift.org>
1BE1E29A084CB305F397D62A9F597F4D21A56D5F \
# pub 4096R/91D306C6 2016-05-31 [expires: 2018-05-31]
# Key fingerprint = A3BA FD35 56A5 9079 C068 94BD 63BC 1CFE 91D3 06C6
# uid Swift 3.x Release Signing Key <swift-infrastructure@swift.org>
A3BAFD3556A59079C06894BD63BC1CFE91D306C6 \
; do \
gpg--quiet--keyserver ha.pool.sks-keyservers.net--recv-keys "$key"; \
done \
&& gpg--batch--verify--quiet swift.tar.gz.sig swift.tar.gz \
&& tar-xzf swift.tar.gz--directory /--strip-components=1 \
&& rm-r "$GNUPGHOME" swift.tar.gz.sig swift.tar.gz
# Print Installed Swift Version
RUN swift--version
COPY . /var/www/java
WORKDIR /var/www/java
CMD ["swift","index.swift"]
创建一个 swift 文件
在创建 Dockerfile 之后，我们正在创建一个 Swift 文件。这仅包括一个打印语句，该语句将在运行 Docker 映像时产生输出。
//index.swift
print("Hello from swift")
创建 Docker 镜像
现在。按照以下命令构建 Docker 镜像。
$ docker build-t swift-app .
运行 Docker 镜像
