I want to match a specific value in json file and append an suffix to it in the same json file.
Here is my json file
{
"apiVersion": "argoproj.io/v1alpha1",
"kind": "Workflow",
"metadata": {
"generateName": "kns-vm-"
},
"spec": {
"templates": [{
"inputs": {
"parameters": [{
"name": "un",
"value": "org"
}]
},
"dag": {
"tasks": [{
"name": "create-ns",
"templateRef": {
"name": "wft-kn"
},
"arguments": {
"parameters": [{
"name": "un",
"value": "{{inputs.parameters.un}}"
}]
}
},
{
"name": "create-sm",
"templateRef": {
"name": "wft-sn"
},
"arguments": {
"parameters": [{
"name": "un",
"value": "{{inputs.parameters.un}}"
}]
}
}
]
}
}]
}
}
in this I want to find value wft-sn
and append an suffix -test
to it
so the updated json file should look like this
{
"apiVersion": "argoproj.io/v1alpha1",
"kind": "Workflow",
"metadata": {
"generateName": "kns-vm-"
},
"spec": {
"templates": [{
"inputs": {
"parameters": [{
"name": "un",
"value": "org"
}]
},
"dag": {
"tasks": [{
"name": "create-ns",
"templateRef": {
"name": "wft-kn"
},
"arguments": {
"parameters": [{
"name": "un",
"value": "{{inputs.parameters.un}}"
}]
}
},
{
"name": "create-sm",
"templateRef": {
"name": "wft-sn-test"
},
"arguments": {
"parameters": [{
"name": "un",
"value": "{{inputs.parameters.un}}"
}]
}
}
]
}
}]
}
}
I am using the jq
command like below but it is not working
jq '. | select(.spec.templates[].dag.tasks[].templateRef.name == "wft-sn").name |= . "-test"' demo.json
what mistake I am doing here? how we can do this?
CodePudding user response:
select
reproduces its input if the condition evaluates to true
. Apply it therefore only to the part you want to test. Also, keep the overall context in parentheses to retain it on top-level for output:
jq '(.spec.templates[].dag.tasks[].templateRef.name | select(. == "wft-sn")) = "-test"'
{
"apiVersion": "argoproj.io/v1alpha1",
"kind": "Workflow",
"metadata": {
"generateName": "kns-vm-"
},
"spec": {
"templates": [
{
"inputs": {
"parameters": [
{
"name": "un",
"value": "org"
}
]
},
"dag": {
"tasks": [
{
"name": "create-ns",
"templateRef": {
"name": "wft-kn"
},
"arguments": {
"parameters": [
{
"name": "un",
"value": "{{inputs.parameters.un}}"
}
]
}
},
{
"name": "create-sm",
"templateRef": {
"name": "wft-sn-test"
},
"arguments": {
"parameters": [
{
"name": "un",
"value": "{{inputs.parameters.un}}"
}
]
}
}
]
}
}
]
}
}
I have also removed the unnecessary . |
and reduced |= .
to =
.