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| 1 | +#!/bin/bash |
| 2 | + |
| 3 | +# Triggers a remote GitHub workflow in nhs-notify-internal and waits for completion. |
| 4 | + |
| 5 | +# Usage: |
| 6 | +# ./dispatch_internal_repo_workflow.sh \ |
| 7 | +# --infraRepoName <repo> \ |
| 8 | +# --releaseVersion <version> \ |
| 9 | +# --targetWorkflow <workflow.yaml> \ |
| 10 | +# --targetEnvironment <env> \ |
| 11 | +# --targetComponent <component> \ |
| 12 | +# --targetAccountGroup <group> \ |
| 13 | +# --terraformAction <action> \ |
| 14 | +# --internalRef <ref> \ |
| 15 | +# --overrides <overrides> \ |
| 16 | +# --overrideProjectName <name> \ |
| 17 | +# --overrideRoleName <name> |
| 18 | + |
| 19 | +# |
| 20 | +# All arguments are required except terraformAction, and internalRef. |
| 21 | +# Example: |
| 22 | +# ./dispatch_internal_repo_workflow.sh \ |
| 23 | +# --infraRepoName "nhs-notify-dns" \ |
| 24 | +# --releaseVersion "v1.2.3" \ |
| 25 | +# --targetWorkflow "deploy.yaml" \ |
| 26 | +# --targetEnvironment "prod" \ |
| 27 | +# --targetComponent "web" \ |
| 28 | +# --targetAccountGroup "core" \ |
| 29 | +# --terraformAction "apply" \ |
| 30 | +# --internalRef "main" \ |
| 31 | +# --overrides "tf_var=someString" \ |
| 32 | +# --overrideProjectName nhs \ |
| 33 | +# --overrideRoleName nhs-service-iam-role |
| 34 | + |
| 35 | +set -e |
| 36 | + |
| 37 | +while [[ $# -gt 0 ]]; do |
| 38 | + case $1 in |
| 39 | + --infraRepoName) # Name of the infrastructure repo in NHSDigital org (required) |
| 40 | + infraRepoName="$2" |
| 41 | + shift 2 |
| 42 | + ;; |
| 43 | + --releaseVersion) # Release version, commit, or tag to deploy (required) |
| 44 | + releaseVersion="$2" |
| 45 | + shift 2 |
| 46 | + ;; |
| 47 | + --targetWorkflow) # Name of the workflow file to call in nhs-notify-internal (required) |
| 48 | + targetWorkflow="$2" |
| 49 | + shift 2 |
| 50 | + ;; |
| 51 | + --targetEnvironment) # Terraform environment to deploy (required) |
| 52 | + targetEnvironment="$2" |
| 53 | + shift 2 |
| 54 | + ;; |
| 55 | + --targetComponent) # Terraform component to deploy (required) |
| 56 | + targetComponent="$2" |
| 57 | + shift 2 |
| 58 | + ;; |
| 59 | + --targetAccountGroup) # Terraform account group to deploy (required) |
| 60 | + targetAccountGroup="$2" |
| 61 | + shift 2 |
| 62 | + ;; |
| 63 | + --terraformAction) # Terraform action to run (optional) |
| 64 | + terraformAction="$2" |
| 65 | + shift 2 |
| 66 | + ;; |
| 67 | + --internalRef) # Internal repo reference branch or tag (optional, default: "main") |
| 68 | + internalRef="$2" |
| 69 | + shift 2 |
| 70 | + ;; |
| 71 | + --overrides) # Terraform overrides for passing in extra variables (optional) |
| 72 | + overrides="$2" |
| 73 | + shift 2 |
| 74 | + ;; |
| 75 | + --overrideProjectName) # Override the project name (optional) |
| 76 | + overrideProjectName="$2" |
| 77 | + shift 2 |
| 78 | + ;; |
| 79 | + --overrideRoleName) # Override the role name (optional) |
| 80 | + overrideRoleName="$2" |
| 81 | + shift 2 |
| 82 | + ;; |
| 83 | + *) |
| 84 | + echo "[ERROR] Unknown argument: $1" |
| 85 | + exit 1 |
| 86 | + ;; |
| 87 | + esac |
| 88 | +done |
| 89 | + |
| 90 | +if [[ -z "$APP_PEM_FILE" ]]; then |
| 91 | + echo "[ERROR] PEM_FILE environment variable is not set or is empty." |
| 92 | + exit 1 |
| 93 | +fi |
| 94 | + |
| 95 | +if [[ -z "$APP_CLIENT_ID" ]]; then |
| 96 | + echo "[ERROR] CLIENT_ID environment variable is not set or is empty." |
| 97 | + exit 1 |
| 98 | +fi |
| 99 | + |
| 100 | +now=$(date +%s) |
| 101 | +iat=$((${now} - 60)) # Issues 60 seconds in the past |
| 102 | +exp=$((${now} + 600)) # Expires 10 minutes in the future |
| 103 | + |
| 104 | +b64enc() { openssl base64 | tr -d '=' | tr '/+' '_-' | tr -d '\n'; } |
| 105 | + |
| 106 | +header_json='{ |
| 107 | + "typ":"JWT", |
| 108 | + "alg":"RS256" |
| 109 | +}' |
| 110 | +# Header encode |
| 111 | +header=$( echo -n "${header_json}" | b64enc ) |
| 112 | + |
| 113 | +payload_json="{ |
| 114 | + \"iat\":${iat}, |
| 115 | + \"exp\":${exp}, |
| 116 | + \"iss\":\"${APP_CLIENT_ID}\" |
| 117 | +}" |
| 118 | +# Payload encode |
| 119 | +payload=$( echo -n "${payload_json}" | b64enc ) |
| 120 | + |
| 121 | +# Signature |
| 122 | +header_payload="${header}"."${payload}" |
| 123 | +signature=$( |
| 124 | + openssl dgst -sha256 -sign <(echo -n "${APP_PEM_FILE}") \ |
| 125 | + <(echo -n "${header_payload}") | b64enc |
| 126 | +) |
| 127 | + |
| 128 | +# Create JWT |
| 129 | +JWT="${header_payload}"."${signature}" |
| 130 | + |
| 131 | +INSTALLATION_ID=$(curl -X GET \ |
| 132 | + -H "Accept: application/vnd.github+json" \ |
| 133 | + -H "Authorization: Bearer ${JWT}" \ |
| 134 | + -H "X-GitHub-Api-Version: 2022-11-28" \ |
| 135 | + --url "https://api.github.com/app/installations" | jq -r '.[0].id') |
| 136 | + |
| 137 | +PR_TRIGGER_PAT=$(curl --request POST \ |
| 138 | + --url "https://api.github.com/app/installations/${INSTALLATION_ID}/access_tokens" \ |
| 139 | + -H "Accept: application/vnd.github+json" \ |
| 140 | + -H "Authorization: Bearer ${JWT}" \ |
| 141 | + -H "X-GitHub-Api-Version: 2022-11-28" | jq -r '.token') |
| 142 | + |
| 143 | +# Set default values if not provided |
| 144 | +if [[ -z "$PR_TRIGGER_PAT" ]]; then |
| 145 | + echo "[ERROR] PR_TRIGGER_PAT environment variable is not set or is empty." |
| 146 | + exit 1 |
| 147 | +fi |
| 148 | + |
| 149 | +if [[ -z "$overrides" ]]; then |
| 150 | + overrides="" |
| 151 | +fi |
| 152 | + |
| 153 | +if [[ -z "$internalRef" ]]; then |
| 154 | + internalRef="main" |
| 155 | +fi |
| 156 | + |
| 157 | +echo "==================== Workflow Dispatch Parameters ====================" |
| 158 | +echo " infraRepoName: $infraRepoName" |
| 159 | +echo " releaseVersion: $releaseVersion" |
| 160 | +echo " targetWorkflow: $targetWorkflow" |
| 161 | +echo " targetEnvironment: $targetEnvironment" |
| 162 | +echo " targetComponent: $targetComponent" |
| 163 | +echo " targetAccountGroup: $targetAccountGroup" |
| 164 | +echo " terraformAction: $terraformAction" |
| 165 | +echo " internalRef: $internalRef" |
| 166 | +echo " overrides: $overrides" |
| 167 | +echo " overrideProjectName: $overrideProjectName" |
| 168 | +echo " overrideRoleName: $overrideRoleName" |
| 169 | +echo " targetProject: $targetProject" |
| 170 | + |
| 171 | +DISPATCH_EVENT=$(jq -ncM \ |
| 172 | + --arg infraRepoName "$infraRepoName" \ |
| 173 | + --arg releaseVersion "$releaseVersion" \ |
| 174 | + --arg targetEnvironment "$targetEnvironment" \ |
| 175 | + --arg targetAccountGroup "$targetAccountGroup" \ |
| 176 | + --arg targetComponent "$targetComponent" \ |
| 177 | + --arg terraformAction "$terraformAction" \ |
| 178 | + --arg targetWorkflow "$targetWorkflow" \ |
| 179 | + --arg overrides "$overrides" \ |
| 180 | + --arg overrideProjectName "$overrideProjectName" \ |
| 181 | + --arg overrideRoleName "$overrideRoleName" \ |
| 182 | + --arg targetProject "$targetProject" \ |
| 183 | + '{ |
| 184 | + "ref": "'"$internalRef"'", |
| 185 | + "inputs": ( |
| 186 | + (if $infraRepoName != "" then { "infraRepoName": $infraRepoName } else {} end) + |
| 187 | + (if $terraformAction != "" then { "terraformAction": $terraformAction } else {} end) + |
| 188 | + (if $overrideProjectName != "" then { "overrideProjectName": $overrideProjectName } else {} end) + |
| 189 | + (if $overrideRoleName != "" then { "overrideRoleName": $overrideRoleName } else {} end) + |
| 190 | + (if $targetProject != "" then { "targetProject": $targetProject } else {} end) + |
| 191 | + { |
| 192 | + "releaseVersion": $releaseVersion, |
| 193 | + "targetEnvironment": $targetEnvironment, |
| 194 | + "targetAccountGroup": $targetAccountGroup, |
| 195 | + "targetComponent": $targetComponent, |
| 196 | + "overrides": $overrides, |
| 197 | + } |
| 198 | + ) |
| 199 | + }') |
| 200 | + |
| 201 | +echo "[INFO] Triggering workflow '$targetWorkflow' in nhs-notify-internal..." |
| 202 | + |
| 203 | +trigger_response=$(curl -s -L \ |
| 204 | + --fail \ |
| 205 | + -X POST \ |
| 206 | + -H "Accept: application/vnd.github+json" \ |
| 207 | + -H "Authorization: Bearer ${PR_TRIGGER_PAT}" \ |
| 208 | + -H "X-GitHub-Api-Version: 2022-11-28" \ |
| 209 | + "https://api.github.com/repos/NHSDigital/nhs-notify-internal/actions/workflows/$targetWorkflow/dispatches" \ |
| 210 | + -d "$DISPATCH_EVENT" 2>&1) |
| 211 | + |
| 212 | +if [[ $? -ne 0 ]]; then |
| 213 | + echo "[ERROR] Failed to trigger workflow. Response: $trigger_response" |
| 214 | + exit 1 |
| 215 | +fi |
| 216 | + |
| 217 | +echo "[INFO] Workflow trigger request sent successfully, waiting for completion..." |
| 218 | + |
| 219 | +sleep 10 # Wait a few seconds before checking for the presence of the api to account for GitHub updating |
| 220 | + |
| 221 | +# Poll GitHub API to check the workflow status |
| 222 | +workflow_run_url="" |
| 223 | + |
| 224 | +for _ in {1..18}; do |
| 225 | + |
| 226 | + response=$(curl -s -L \ |
| 227 | + -H "Accept: application/vnd.github+json" \ |
| 228 | + -H "Authorization: Bearer ${PR_TRIGGER_PAT}" \ |
| 229 | + -H "X-GitHub-Api-Version: 2022-11-28" \ |
| 230 | + "https://api.github.com/repos/NHSDigital/nhs-notify-internal/actions/runs?event=workflow_dispatch") |
| 231 | + |
| 232 | + if ! echo "$response" | jq empty 2>/dev/null; then |
| 233 | + echo "[ERROR] Invalid JSON response from GitHub API during workflow polling:" |
| 234 | + echo "$response" |
| 235 | + exit 1 |
| 236 | + fi |
| 237 | + |
| 238 | + workflow_run_url=$(echo "$response" | jq -r \ |
| 239 | + --arg targetWorkflow "$targetWorkflow" \ |
| 240 | + --arg targetEnvironment "$targetEnvironment" \ |
| 241 | + --arg targetAccountGroup "$targetAccountGroup" \ |
| 242 | + --arg targetComponent "$targetComponent" \ |
| 243 | + --arg terraformAction "$terraformAction" \ |
| 244 | + '.workflow_runs[] |
| 245 | + | select(.path == ".github/workflows/" + $targetWorkflow) |
| 246 | + | select(.name |
| 247 | + | contains($targetEnvironment) |
| 248 | + and contains($targetAccountGroup) |
| 249 | + and contains($targetComponent) |
| 250 | + and contains($terraformAction) |
| 251 | + ) |
| 252 | + | .url') |
| 253 | + |
| 254 | + if [[ -n "$workflow_run_url" && "$workflow_run_url" != null ]]; then |
| 255 | + # Workflow_run_url is a list of all workflows which were run for this combination of inputs, but are the API uri |
| 256 | + workflow_run_url=$(echo "$workflow_run_url" | head -n 1) |
| 257 | + |
| 258 | + # Take the first and strip it back to being an accessible url |
| 259 | + # Example https://api.github.com/repos/MyOrg/my-repo/actions/runs/12346789 becomes |
| 260 | + # becomes https://github.com/MyOrg/my-repo/actions/runs/12346789 |
| 261 | + workflow_run_ui_url=${workflow_run_url/api./} # Strips the api. prefix |
| 262 | + workflow_run_ui_url=${workflow_run_ui_url/\/repos/} # Strips the repos/ uri |
| 263 | + echo "[INFO] Found workflow run url: $workflow_run_ui_url" |
| 264 | + break |
| 265 | + fi |
| 266 | + |
| 267 | + echo "[$(date '+%Y-%m-%d %H:%M:%S')] Waiting for workflow to start..." |
| 268 | + sleep 10 |
| 269 | +done |
| 270 | + |
| 271 | +if [[ -z "$workflow_run_url" || "$workflow_run_url" == null ]]; then |
| 272 | + echo "[ERROR] Failed to get the workflow run url. Exiting." |
| 273 | + exit 1 |
| 274 | +fi |
| 275 | + |
| 276 | +# Wait for workflow completion |
| 277 | +while true; do |
| 278 | + sleep 10 |
| 279 | + response=$(curl -s -L \ |
| 280 | + -H "Authorization: Bearer ${PR_TRIGGER_PAT}" \ |
| 281 | + -H "Accept: application/vnd.github+json" \ |
| 282 | + "$workflow_run_url") |
| 283 | + |
| 284 | + status=$(echo "$response" | jq -r '.status') |
| 285 | + echo "[$(date '+%Y-%m-%d %H:%M:%S')] Workflow status: $status" |
| 286 | + |
| 287 | + if [ "$status" == "completed" ]; then |
| 288 | + conclusion=$(echo "$response" | jq -r '.conclusion') |
| 289 | + echo "[$(date '+%Y-%m-%d %H:%M:%S')] Workflow conclusion: $conclusion" |
| 290 | + |
| 291 | + if [ -z "$conclusion" ] || [ "$conclusion" == "null" ]; then |
| 292 | + echo "[WARN] Workflow marked completed but conclusion not yet available, retrying..." |
| 293 | + sleep 5 |
| 294 | + continue |
| 295 | + fi |
| 296 | + |
| 297 | + if [ "$conclusion" == "success" ]; then |
| 298 | + echo "[SUCCESS] Workflow completed successfully!" |
| 299 | + exit 0 |
| 300 | + else |
| 301 | + echo "[FAIL] Workflow failed with conclusion: $conclusion" |
| 302 | + exit 1 |
| 303 | + fi |
| 304 | + fi |
| 305 | +done |
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