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How to parse the json to retrieve a field from output of. kubectl get pods -o json. From the command line I need to obtain the system generated container name from a google cloud cluster ... Here are the salient bits of json output from above command : click here to see entire json output.
11 wrz 2024 · Converting the json array into a tabular output with jq can be done using @tsv as follows: kubectl get no -o json | jq -r '.items[] | select(.spec.unschedulable!=true) | [.metadata.name,.spec.externalID] | @tsv' Jq also allows us to sort: kubectl get po -o json | jq -r '.items | sort_by(.spec.nodeName)[] | [.spec.nodeName,.metadata.name] | @tsv'
6 lip 2024 · Specifically, the kubectl get command supports the jsonpath output format, which can take a JSON path expression to extract specific field values. Additionally, we can construct a highly specific output to suit our needs using the custom-columns and go-template output format.
16 gru 2023 · Example: kubectl get pods -n mynamespace. This command lists all 'mynamespace' pods. Common Flags: Use the -n or --namespace flag to specify the namespace. Use kubectl get pods -n mynamespace with -o or --output for output formats like json or yaml. E.g. kubectl get pod mypod json
1 sty 2024 · Kubernetes provides a command line tool for communicating with a Kubernetes cluster's control plane, using the Kubernetes API. This tool is named kubectl. For configuration, kubectl looks for a file named config in the $HOME/.kube directory.
7 wrz 2022 · The common solution is to output the text in the corresponding JSON-format with -ojson, and then get the information needed with jq tool. kubectl get pod -n namespace -ojson | jq ‘filter’
28 lip 2023 · Kubectl uses JSONPath expressions to filter on specific fields in the JSON object and format the output. In addition to the original JSONPath template syntax, the following functions and syntax are valid: Use double quotes to quote text inside JSONPath expressions. Use the range, end operators to iterate lists.
