Go语言中的迭代器和 iter 包: 这篇文章转发的他人的，觉得写的很不错，自己收录了一遍。 很多流行的编程语言中都以某种方式提供迭代器，其中包括 C++、Java、Javascript、Python 和 Rust。Go 语言现在也加入了迭代器。iter 包是 Go 1.23 新增的标准库，提供了迭代器的基本定义和相关操作。 为什么需要迭代器 在 Go 1.18 引入泛型之后，便可以很方便的定义一些泛型容器类型来提升编码效率。 例如我们可以基于 map 类型定义了一个集合类型—— Set。 // Set 基于 map 定义一个存放元素的集合类型 type Set[E comparable] struct { m map[E]struct{} } // NewSet 返回一个 Set func NewSet[E comparable]() *Set[E] { return &Set[E]{m: make(map[E]struct{})} } // Add 向 Set 中添加元素 func (s... » read more
1. install es Install with Debian package configuring es elasticsearch.yaml: cluster.name: es-test node.name: es-test-1 node.roles: [ master, data ] path.data: /var/lib/elasticsearch path.logs: /var/log/elasticsearch # Lock the memory on startup: bootstrap.memory_lock: true network.host: 172.20.133.158 discovery.type: single-node # 单节点模式 Systemd configuration [Service] LimitMEMLOCK=infinity reload units: sudo systemctl daemon-reload 2. Reset user password Reset the elastic superuser password... » read more
Ensuring all client requests are handled properly You now have a good sense of how to make pods shut down cleanly. Now, we’ll look at the pod’s lifecycle from the perspective of the pod’s clients (clients consuming the service the pod is providing). This is important to understand if you don’t want clients to run... » read more
The Kubernetes termination lifecycle Once Kubernetes has decided to terminate your pod, a series of events takes place. Let’s look at each step of the Kubernetes termination lifecycle. The container termination sequence 1 – Pod is set to the “Terminating” State and removed from the endpoints list of all Services At this point, the pod... » read more
在上一篇文章，我们实现了SSH 私钥的“内容直接输入与文件上传双重输入方式”，那么我们在 console 上主动生成一个 SSH 私钥（非本地上传），当请求成功时，如何本地能同时得到生成的私钥文件呢？ 实现 API 响应: { "code": 0, "message": "ok", "data": { "name": "test", "key_material": "-----BEGIN RSA PRIVATE KEY-----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\npxOHfLyTvv0lcv/1AqAhKzu7r64f5lyUMFNcF33LWifZBhcI+5s=\n-----END RSA PRIVATE KEY-----\n" } } 实现方案: 用户点击生成密钥对按钮 amis 请求后台，拿到密钥对 amis 自动弹出下载/保存对话或直接下载（JS动作，生成blob并自动触发下载） *** reload 当前界面 { "type": "container", "align": "right", "behavior": [ "FuzzyQuery" ], "body": [ { "type": "button", "label": "创建秘钥对", "onEvent": {... » read more
具体场景 以私钥的输入为例，用户既可以直接输入私钥内容，也可以上传指定的文件。 如何实现 用 tabs 或 select 控件自由切换输入/上传方式，是 AMis 推荐的模式。 { "type": "button", "label": "新增", "level": "primary", "className": "m-r-xs", "behavior": "Insert", "onEvent": { "click": { "actions": [ { "actionType": "dialog", "dialog": { "type": "dialog", "title": "新增数据", "body": [ { "id": "u:2b9e1961e997", "type": "form", "title": "新增数据", "mode": "flex", "labelAlign": "top", "dsType": "api", "feat": "Insert", "body": [... » read more
父级页面跳转 { "type": "dropdown-button", "label": "服务和环境", "buttons": [ { "type": "button", "label": "服务管理", "onEvent": { "click": { "actions": [ { "ignoreError": false, "actionType": "url", "args": { "url": "/project/project/service", "params": { "project_id": "${id}" } } } ] } }, "id": "u:ed81ff6d4113" }, { "type": "button", "label": "环境管理", "onEvent": { "click": { "actions": [ { "ignoreError": false,... » read more
具体的场景 服务器资源根据用户选择“项目”， “环境”， “区域”来刷新界面，同时选择“项目”会刷新“环境”的选项。 { "type": "container", "body": [ { "type": "picker", "label": "项目", "name": "project", "overflowConfig": { "maxTagCount": -1, "displayPosition": [ "select" ] }, "modalClassName": "app-popover :AMISCSSWrapper", "id": "u:2f60910808e0", "multiple": false, "embed": false, "modalMode": "drawer", "source": "/project/v1/project", "labelField": "name", "valueField": "resource_id", "onEvent": { "change": { "weight": 0, "actions": [ { // 被 action 的组件不要使用... » read more
前提： 有一个部署在 AWS ec2 实例上的 gitlab ，并有管理这个账号的相关权限。 开启 Package Registry, 并使用 S3 bucket ################################################################################ ## Package repository ##! Docs: https://docs.gitlab.com/ee/administration/packages/ ################################################################################ # gitlab_rails['packages_enabled'] = true # gitlab_rails['packages_storage_path'] = "/var/opt/gitlab/gitlab-rails/shared/packages" # gitlab_rails['packages_object_store_enabled'] = false # gitlab_rails['packages_object_store_proxy_download'] = false # gitlab_rails['packages_object_store_remote_directory'] = "packages" # gitlab_rails['packages_object_store_connection'] = { # 'provider' => 'AWS', # 'region' => 'eu-west-1', # 'aws_access_key_id'... » read more
Deploy ReplicaSet With Keyfile Authentication ① Create a keyfile openssl rand -base64 756 > mongodb.key # chmod 400 <path-to-keyfile> ② Copy the keyfile to each replica set member sudo mv mongodb.key /var/lib/mongodb sudo chown mongodb:mongodb /var/lib/mongodb/mongodb.key sudo chmod 400 /var/lib/mongodb/mongodb.key ③ Start each member of the replica set with access control enabled net: port: 27017... » read more