Mirror 模式
使用 dfdaemon 支持 Containerd
从 v1.1.0 开始,Containerd 支持镜像仓库。
快速开始
步骤 1: 配置 dfdaemon
下面为镜像仓库的 dfdaemon 配置,在路径 /etc/dragonfly/dfget.yaml
:
proxy:
security:
insecure: true
tcpListen:
listen: 0.0.0.0
port: 65001
registryMirror:
# multiple registries support, if only mirror single registry, disable this
dynamic: true
url: https://index.docker.io
proxies:
- regx: blobs/sha256.*
运行 dfdaemon
dfget daemon
步骤 2: 配置 Containerd
选项 1: 单镜像仓库
启动 Containerd 镜像仓库配置 /etc/containerd/config.toml
:
# explicitly use v2 config format, if already v2, skip the "version = 2"
version = 2
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
endpoint = ["http://127.0.0.1:65001","https://index.docker.io"]
配置支持两个镜像仓库地址 http://127.0.0.1:65001
以及 https://index.docker.io
.
在 Containerd 配置文件中启用私有镜像注册中心,配置文件位于 /etc/containerd/config.toml
:
# explicitly use v2 config format, if already v2, skip the "version = 2"
version = 2
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
endpoint = ["http://127.0.0.1:65001","https://index.docker.io"]
[plugins."io.containerd.grpc.v1.cri".registry.configs."127.0.0.1:65001".auth]
username = "registry_username"
password = "registry_password"
在本配置文件中,注册中心的 auth 必须基于 127.0.0.1:65001
。
详细 Containerd 配置文档参照: https://github.com/containerd/containerd/blob/v1.5.2/docs/cri/registry.md#configure-registry-endpoint 镜像仓库配置参照文档: https://github.com/containerd/containerd/blob/v1.5.2/docs/cri/config.md#registry-configuration
选项 2: 多镜像仓库
1.5.0 以上版本 Containerd 支持多镜像仓库。
1. 开启 Contianerd 配置
启动 Containerd 镜像仓库配置 /etc/containerd/config.toml
:
# explicitly use v2 config format, if already v2, skip the "version = 2"
version = 2
[plugins."io.containerd.grpc.v1.cri".registry]
config_path = "/etc/containerd/certs.d"
2. 生成每个仓库的 hosts.toml
选项 1: 手动生成 hosts.toml
路径: /etc/containerd/certs.d/example.com/hosts.toml
根据不同的仓库替换 example.com
。
server = "https://example.com"
[host."http://127.0.0.1:65001"]
capabilities = ["pull", "resolve"]
[host."http://127.0.0.1:65001".header]
X-Dragonfly-Registry = ["https://example.com"]
选项 2: 自动生成 hosts.toml
自动生成 hosts.toml 脚本为 https://github.com/dragonflyoss/Dragonfly2/blob/main/hack/gen-containerd-hosts.sh
bash gen-containerd-hosts.sh example.com
镜像仓库配置详细文档参照: https://github.com/containerd/containerd/blob/main/docs/hosts.md#registry-configuration---examples
Step 3: 重启 Containerd
systemctl restart containerd
Step 4: 拉取镜像
使用以下命令拉取镜像:
crictl pull docker.io/library/busybox
Step 5: 验证 Dragonfly 拉取成功
可以查看日志,判断 busybox 镜像正常拉取。
grep 'register peer task result' /var/log/dragonfly/daemon/*.log
如果正常日志输出如下:
{
"level": "info",
"ts": "2021-02-23 20:03:20.306",
"caller": "client/client.go:83",
"msg": "register peer task result:true[200]",
"peerId": "10.15.233.91-65000-43096-1614081800301788000",
"errMsg": null
}