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docs(samples): convert samples to async/await, and use mocha for tests (
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#146)
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@muraliQlogic @JustinBeckwith
muraliQlogic authored and JustinBeckwith committed Nov 16, 2018
1 parent a62d10c commit f265518
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Showing 10 changed files with 531 additions and 669 deletions.
192 changes: 74 additions & 118 deletions monitoring/snippets/alerts.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@

'use strict';

function backupPolicies(projectId) {
async function backupPolicies(projectId) {
// [START monitoring_alert_backup_policies]
const fs = require('fs');

Expand All @@ -41,26 +41,19 @@ function backupPolicies(projectId) {
name: client.projectPath(projectId),
};

client
.listAlertPolicies(listAlertPoliciesRequest)
.then(results => {
const policies = results[0];

fs.writeFileSync(
'./policies_backup.json',
JSON.stringify(policies, null, 2),
'utf-8'
);

console.log('Saved policies to ./policies_backup.json');
})
.catch(err => {
console.error('ERROR:', err);
});
const [policies] = await client.listAlertPolicies(listAlertPoliciesRequest);

fs.writeFileSync(
'./policies_backup.json',
JSON.stringify(policies, null, 2),
'utf-8'
);

console.log('Saved policies to ./policies_backup.json');
// [END monitoring_alert_backup_policies]
}

function restorePolicies(projectId) {
async function restorePolicies(projectId) {
// Note: The policies are restored one at a time because I get 'service
// unavailable' when I try to create multiple alerts simultaneously.
// [START monitoring_alert_restore_policies]
Expand All @@ -82,55 +75,43 @@ function restorePolicies(projectId) {
const fileContent = fs.readFileSync('./policies_backup.json', 'utf-8');
const policies = JSON.parse(fileContent);

let promise = Promise.resolve();

policies.forEach(policy => {
for (const index in policies) {
// Restore each policy one at a time
promise = promise
.then(() => doesAlertPolicyExist(policy.name))
.then(exists => {
if (exists) {
return client.updateAlertPolicy({alertPolicy: policy});
}

// Clear away output-only fields
delete policy.name;
delete policy.creationRecord;
delete policy.mutationRecord;
policy.conditions.forEach(condition => delete condition.name);

return client.createAlertPolicy({
name: client.projectPath(projectId),
alertPolicy: policy,
});
})
.then(response => {
const policy = response[0];
console.log(`Restored ${policy.name}.`);
let policy = policies[index];
if (await doesAlertPolicyExist(policy.name)) {
policy = await client.updateAlertPolicy({alertPolicy: policy});
} else {
// Clear away output-only fields
delete policy.name;
delete policy.creationRecord;
delete policy.mutationRecord;
policy.conditions.forEach(condition => delete condition.name);

policy = await client.createAlertPolicy({
name: client.projectPath(projectId),
alertPolicy: policy,
});
});

promise.catch(err => {
console.error('ERROR:', err);
});
}

function doesAlertPolicyExist(name) {
return client
.getAlertPolicy({name: name})
.then(() => true)
.catch(err => {
if (err && err.code === 5) {
// Error code 5 comes from the google.rpc.code.NOT_FOUND protobuf
return false;
}
return Promise.reject(err);
});
console.log(`Restored ${policy[0].name}.`);
}
async function doesAlertPolicyExist(name) {
try {
const [policy] = await client.getAlertPolicy({name});
return policy ? true : false;
} catch (err) {
if (err && err.code === 5) {
// Error code 5 comes from the google.rpc.code.NOT_FOUND protobuf
return false;
}
throw err;
}
}
// [END monitoring_alert_create_policy]
// [END monitoring_alert_restore_policies]
}

function replaceChannels(projectId, alertPolicyId, channelIds) {
async function replaceChannels(projectId, alertPolicyId, channelIds) {
// [START monitoring_alert_replace_channels]
// Imports the Google Cloud client library
const monitoring = require('@google-cloud/monitoring');
Expand Down Expand Up @@ -161,20 +142,14 @@ function replaceChannels(projectId, alertPolicyId, channelIds) {
notificationChannels: notificationChannels,
},
};

alertClient
.updateAlertPolicy(updateAlertPolicyRequest)
.then(results => {
const alertPolicy = results[0];
console.log(`Updated ${alertPolicy.name}.`);
})
.catch(err => {
console.error('ERROR:', err);
});
const [alertPolicy] = await alertClient.updateAlertPolicy(
updateAlertPolicyRequest
);
console.log(`Updated ${alertPolicy.name}.`);
// [END monitoring_alert_replace_channels]
}

function enablePolicies(projectId, enabled, filter) {
async function enablePolicies(projectId, enabled, filter) {
// [START monitoring_alert_enable_policies]
// Imports the Google Cloud client library
const monitoring = require('@google-cloud/monitoring');
Expand All @@ -195,41 +170,30 @@ function enablePolicies(projectId, enabled, filter) {
filter: filter,
};

client
.listAlertPolicies(listAlertPoliciesRequest)
.then(results => {
const policies = results[0];

const tasks = policies
.map(policy => {
return {
updateMask: {paths: ['disabled']},
alertPolicy: {
name: policy.name,
disabled: enabled ? false : true,
},
};
})
.map(updateAlertPolicyRequest =>
client.updateAlertPolicy(updateAlertPolicyRequest)
);

// Wait for all policies to be enabled
return Promise.all(tasks);
})
.then(responses => {
responses.forEach(response => {
const alertPolicy = response[0];
console.log(`${enabled ? 'Enabled' : 'Disabled'} ${alertPolicy.name}.`);
});
})
.catch(err => {
console.error('ERROR:', err);
});
const [policies] = await client.listAlertPolicies(listAlertPoliciesRequest);
const tasks = await Promise.all(
policies
.map(policy => {
return {
updateMask: {paths: ['disabled']},
alertPolicy: {
name: policy.name,
disabled: enabled ? false : true,
},
};
})
.map(updateAlertPolicyRequest =>
client.updateAlertPolicy(updateAlertPolicyRequest)
)
);
tasks.forEach(response => {
const alertPolicy = response[0];
console.log(`${enabled ? 'Enabled' : 'Disabled'} ${alertPolicy.name}.`);
});
// [END monitoring_alert_enable_policies]
}

function listPolicies(projectId) {
async function listPolicies(projectId) {
// [START monitoring_alert_list_policies]
// Imports the Google Cloud client library
const monitoring = require('@google-cloud/monitoring');
Expand All @@ -245,23 +209,15 @@ function listPolicies(projectId) {
const listAlertPoliciesRequest = {
name: client.projectPath(projectId),
};
const [policies] = await client.listAlertPolicies(listAlertPoliciesRequest);
console.log('Policies:');
policies.forEach(policy => {
console.log(` Display name: ${policy.displayName}`);
if (policy.documentation && policy.documentation.content) {
console.log(` Documentation: ${policy.documentation.content}`);
}
});

client
.listAlertPolicies(listAlertPoliciesRequest)
.then(results => {
const policies = results[0];

console.log('Policies:');
policies.forEach(policy => {
console.log(` Display name: ${policy.displayName}`);
if (policy.documentation && policy.documentation.content) {
console.log(` Documentation: ${policy.documentation.content}`);
}
});
})
.catch(err => {
console.error('ERROR:', err);
});
// [END monitoring_alert_list_policies]
}

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