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August 29, 2023 13:52
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Example of using nodes.conf without any `struct` involved.
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| $ go mod init yamltesting | |
| $ go mod tidy | |
| $ go run main.go nodes.conf ifcfg.ww | |
| # Node: cpu-a-1 | |
| TYPE=Ethernet | |
| DEVICE=enp161s0f1np1 | |
| NAME=enp161s0f1np1 | |
| BOOTPROTO=static | |
| DEVTIMEOUT=10 | |
| IPADDR=100.64.2.1 | |
| NETMASK=255.255.255.0 | |
| HWADDR=b8:ce:f6:a1:69:b7 | |
| ONBOOT=true | |
| IPV6INIT=yes | |
| IPV6_AUTOCONF=yes | |
| IPV6_DEFROUTE=yes | |
| IPV6_FAILURE_FATAL=no | |
| # Node: cpu-a-2 | |
| TYPE=Ethernet | |
| DEVICE=enp161s0f1np1 | |
| NAME=enp161s0f1np1 | |
| BOOTPROTO=static | |
| DEVTIMEOUT=10 | |
| IPADDR=100.64.2.2 | |
| NETMASK=255.255.255.0 | |
| HWADDR=b8:ce:f6:a1:67:6f | |
| ONBOOT=true | |
| IPV6INIT=yes | |
| IPV6_AUTOCONF=yes | |
| IPV6_DEFROUTE=yes | |
| IPV6_FAILURE_FATAL=no | |
| ... |
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| {{- range $nodeName, $nodeDetails := .nodes -}} | |
| {{- $netDevices := index $nodeDetails "network devices" -}} | |
| {{- if $netDevices.clusternet -}} | |
| # Node: {{$nodeName}} | |
| TYPE={{ with index $netDevices.clusternet "type" -}}{{ . }}{{ else }}Ethernet{{ end }} | |
| DEVICE={{ index $netDevices.clusternet "device" }} | |
| NAME={{ index $netDevices.clusternet "device" }} | |
| BOOTPROTO=static | |
| DEVTIMEOUT=10 | |
| IPADDR={{ index $netDevices.clusternet "ipaddr" }} | |
| NETMASK={{ with index $netDevices.clusternet "netmask" -}}{{ . }}{{ else }}255.255.255.0{{ end }} | |
| {{- if index $netDevices.clusternet "gateway" -}}GATEWAY={{ index $netDevices.clusternet "gateway" }}{{ end }} | |
| HWADDR={{ index $netDevices.clusternet "hwaddr" }} | |
| ONBOOT={{ with index $netDevices.clusternet "onboot" -}}{{ . }}{{ else }}NO{{ end }} | |
| IPV6INIT=yes | |
| IPV6_AUTOCONF=yes | |
| IPV6_DEFROUTE=yes | |
| IPV6_FAILURE_FATAL=no | |
| {{- if index $netDevices.clusternet "ipaddr6" -}}IPV6ADDR="{{ index $netDevices.clusternet "ipaddr6" }}"{{ end }} | |
| {{ end }} | |
| {{ end }} |
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| package main | |
| import ( | |
| "io/ioutil" | |
| "log" | |
| "os" | |
| "text/template" | |
| yaml "gopkg.in/yaml.v2" | |
| ) | |
| func main() { | |
| if len(os.Args) != 3 { | |
| log.Fatal("Usage: go run main.go <path_to_yaml> <path_to_template>") | |
| } | |
| yamlFilePath := os.Args[1] | |
| templateFilePath := os.Args[2] | |
| // Read the YAML file | |
| yamlFileContent, err := ioutil.ReadFile(yamlFilePath) | |
| if err != nil { | |
| log.Fatalf("Failed to read the YAML file: %v", err) | |
| } | |
| // Read the template file | |
| tmplFileContent, err := ioutil.ReadFile(templateFilePath) | |
| if err != nil { | |
| log.Fatalf("Failed to read the template file: %v", err) | |
| } | |
| // Parse the YAML file into a generic map | |
| var data map[string]interface{} | |
| if err := yaml.Unmarshal(yamlFileContent, &data); err != nil { | |
| log.Fatalf("Failed to unmarshal the YAML content: %v", err) | |
| } | |
| tmpl, err := template.New("yamlTemplate").Parse(string(tmplFileContent)) | |
| if err != nil { | |
| log.Fatalf("Failed to parse the template: %v", err) | |
| } | |
| err = tmpl.Execute(os.Stdout, data) | |
| if err != nil { | |
| log.Fatalf("Failed to execute the template: %v", err) | |
| } | |
| } |
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| WW_INTERNAL: 0 | |
| nodes: | |
| cpu-a-1: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:69:b7 | |
| ipaddr: 100.64.2.1 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:69:b6 | |
| ipaddr: 100.64.18.1 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:69:b6 | |
| ibhwaddr: 00:00:10:49:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:69:b6 | |
| ibportguid: b8:ce:f6:03:00:a1:69:b6 | |
| tags: | |
| compute: clush | |
| cpu-a-2: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:67:6f | |
| ipaddr: 100.64.2.2 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:67:6e | |
| ipaddr: 100.64.18.2 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:67:6e | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:67:6e | |
| ibportguid: b8:ce:f6:03:00:a1:67:6e | |
| tags: | |
| compute: clush | |
| cpu-b-1: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:67:67 | |
| ipaddr: 100.64.2.11 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:67:66 | |
| ipaddr: 100.64.18.3 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:67:66 | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:67:66 | |
| ibportguid: b8:ce:f6:03:00:a1:67:66 | |
| cpu-b-2: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:67:b7 | |
| ipaddr: 100.64.2.12 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:67:b6 | |
| ipaddr: 100.64.18.4 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:67:b6 | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:67:b6 | |
| ibportguid: b8:ce:f6:03:00:a1:67:b6 | |
| cpu-b-3: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:69:37 | |
| ipaddr: 100.64.2.13 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:69:36 | |
| ipaddr: 100.64.18.5 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:69:36 | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:69:36 | |
| ibportguid: b8:ce:f6:03:00:a1:69:36 | |
| cpu-b-4: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:67:47 | |
| ipaddr: 100.64.2.14 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:67:46 | |
| ipaddr: 100.64.18.6 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:67:46 | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:67:46 | |
| ibportguid: b8:ce:f6:03:00:a1:67:46 | |
| cpu-b-5: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:69:c7 | |
| ipaddr: 100.64.2.15 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:69:c6 | |
| ipaddr: 100.64.18.7 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:69:c6 | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:69:c6 | |
| ibportguid: b8:ce:f6:03:00:a1:69:c6 | |
| cpu-b-6: | |
| cluster name: bruno | |
| ipmi: | |
| write: "false" | |
| profiles: | |
| - role-compute | |
| - site-common-bruno | |
| - site-networking-bruno | |
| network devices: | |
| clusternet: | |
| onboot: "true" | |
| device: enp161s0f1np1 | |
| hwaddr: b8:ce:f6:a1:69:57 | |
| ipaddr: 100.64.2.16 | |
| tags: | |
| infiniband: | |
| type: infiniband | |
| onboot: "true" | |
| device: ib0 | |
| hwaddr: b8:ce:f6:a1:69:56 | |
| ipaddr: 100.64.18.8 | |
| primary: "false" | |
| tags: | |
| ibclientid: ff:00:00:00:00:00:02:00:00:02:c9:00:b8:ce:f6:03:00:a1:69:56 | |
| ibhwaddr: 00:00:10:48:fe:80:00:00:00:00:00:00:b8:ce:f6:03:00:a1:69:56 | |
| ibportguid: b8:ce:f6:03:00:a1:69:56 |
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