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本篇文章為大家展示了Web應用中GoTTY終端工具的安裝以及用法,內容簡明扼要并且容易理解,絕對能使你眼前一亮,通過這篇文章的詳細介紹希望你能有所收獲。
GoTTY 是一個簡單的命令行工具,可將您的 CLI 工具變成 Web 應用。
# Mac 版 brew install yudai/gotty/gotty
如果你有 GO 的環境,也可以通過如下方式安裝:
go get github.com/yudai/gotty
Usage: gotty [options] <command> [<arguments...>]
options
--address value, -a value IP address to listen (default: "0.0.0.0") [$GOTTY_ADDRESS] --port value, -p value Port number to liten (default: "8080") [$GOTTY_PORT] --permit-write, -w Permit clients to write to the TTY (BE CAREFUL) [$GOTTY_PERMIT_WRITE] --credential value, -c value Credential for Basic Authentication (ex: user:pass, default disabled) [$GOTTY_CREDENTIAL] --random-url, -r Add a random string to the URL [$GOTTY_RANDOM_URL] --random-url-length value Random URL length (default: 8) [$GOTTY_RANDOM_URL_LENGTH] --tls, -t Enable TLS/SSL [$GOTTY_TLS] --tls-crt value TLS/SSL certificate file path (default: "~/.gotty.crt") [$GOTTY_TLS_CRT] --tls-key value TLS/SSL key file path (default: "~/.gotty.key") [$GOTTY_TLS_KEY] --tls-ca-crt value TLS/SSL CA certificate file for client certifications (default: "~/.gotty.ca.crt") [$GOTTY_TLS_CA_CRT] --index value Custom index.html file [$GOTTY_INDEX] --title-format value Title format of browser window (default: "{{ .command }}@{{ .hostname }}") [$GOTTY_TITLE_FORMAT] --reconnect Enable reconnection [$GOTTY_RECONNECT] --reconnect-time value Time to reconnect (default: 10) [$GOTTY_RECONNECT_TIME] --max-connection value Maximum connection to gotty (default: 0) [$GOTTY_MAX_CONNECTION] --once Accept only one client and exit on disconnection [$GOTTY_ONCE] --timeout value Timeout seconds for waiting a client(0 to disable) (default: 0) [$GOTTY_TIMEOUT] --permit-arguments Permit clients to send command line arguments in URL (e.g. http://example.com:8080/?arg=AAA&arg=BBB) [$GOTTY_PERMIT_ARGUMENTS] --width value Static width of the screen, 0(default) means dynamically resize (default: 0) [$GOTTY_WIDTH] --height value Static height of the screen, 0(default) means dynamically resize (default: 0) [$GOTTY_HEIGHT] --ws-origin value A regular expression that matches origin URLs to be accepted by WebSocket. No cross origin requests are acceptable by default [$GOTTY_WS_ORIGIN] --term value Terminal name to use on the browser, one of xterm or hterm. (default: "xterm") [$GOTTY_TERM] --close-signal value Signal sent to the command process when gotty close it (default: SIGHUP) (default: 1) [$GOTTY_CLOSE_SIGNAL] --close-timeout value Time in seconds to force kill process after client is disconnected (default: -1) (default: -1) [$GOTTY_CLOSE_TIMEOUT] --config value Config file path (default: "~/.gotty") [$GOTTY_CONFIG] --version, -v print the version
3、實踐
# 示例 gotty -w python3
訪問 http://127.0.0.1:8080 即可在線體驗 Python3 環境。
容器化時代,遇到一些問題的時候,會進入容器內部排查問題,依靠命令行確實可以解決,但是效率較低,如果將容器作為 Web 可訪問的應用,那么處理問題就會便捷很多。
下面將介紹如何使用 GoTTY 連接 k8s 集群中的任意容器。
已構建好的鏡像:registry.cn-beijing.aliyuncs.com/tlab/k8s-gotty:latest
gotty:可運行的 gotty 程序,查看 [Releases]列表,選擇合適的
kubernetes.repo:用于下載 kubectl
[kubernetes] name=Kubernetes baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
Dockerfile:用于構建鏡像
FROM centos:latest RUN yum install -y epel-release kde-l10n-Chinese glibc-common wget RUN localedef -c -f UTF-8 -i zh_CN zh_CN.utf8 ENV LC_ALL zh_CN.utf8 ADD gotty /root/ ADD kubernetes.repo /etc/yum.repos.d/ RUN yum -y install kubectl WORKDIR /root EXPOSE 8080 CMD ["./gotty", "-w", "--permit-arguments", "kubectl", "exec", "-it", "-n"]
kind: Deployment apiVersion: apps/v1 metadata: name: gotty namespace: default spec: replicas: 1 selector: matchLabels: k8s-app: gotty template: metadata: labels: k8s-app: gotty spec: serviceAccountName: <此處填具有合適權限的k8s用戶名> containers: - name: gotty image: registry.cn-beijing.aliyuncs.com/tlab/k8s-gotty ports: - containerPort: 8080 protocol: TCP
kind: Service apiVersion: v1 metadata: labels: k8s-app: gotty name: gotty-service namespace: default spec: ports: - port: 80 targetPort: 8080 nodePort: 38080 selector: k8s-app: gotty type: NodePort
在終端里,進入容器的命令是:
kubectl exec -it -n <Namespace> <PodName>
那么,利用 GoTTY 訪問則是 http://<ip>:38080/?arg=<Namespace>&arg=<PodName>
上述內容就是Web應用中GoTTY終端工具的安裝以及用法,你們學到知識或技能了嗎?如果還想學到更多技能或者豐富自己的知識儲備,歡迎關注億速云行業資訊頻道。
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