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95 lines
3.3 KiB
Bash
95 lines
3.3 KiB
Bash
#!/bin/bash
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stack_name="Tweeter"
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export BUILD_DIR=build
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export CLOUD_ID="goudham"
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template_path=${BUILD_DIR}/${stack_name}.json
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change_set_name=${CLOUD_ID}-$(date -u "+%Y-%m-%dT%H-%M-%SZ")
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change_set_params="--change-set-name $change_set_name"
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stack_params="--stack-name $stack_name"
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create_params="$stack_params \
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--template-body file://$template_path \
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--capabilities CAPABILITY_IAM"
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create_change_set_params="$change_set_params $create_params"
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stack_status="$(aws cloudformation list-stacks \
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| jq '.StackSummaries[]|
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select(.StackName == "'${stack_name}'"
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and .StackStatus != "DELETE_COMPLETE")|
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.StackStatus' | \
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tr -d '"')"
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if [[ "$stack_status" =~ "FAILED" ]] || [[ "$stack_status" =~ "IN_PROGRESS" ]] || [[ "$stack_status" == "ROLLBACK_COMPLETE" ]]; then
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echo "ERROR: $stack_name is in a $stack_status state, exiting..."
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exit 1
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fi
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#Build the template
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make STACK_NAME=${stack_name}
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source stacks-venv/Scripts/activate
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if [[ "$stack_status" == "" ]] || [[ " DELETE_COMPLETE ROLLBACK_COMPLETE " =~ " $stack_status " ]]; then
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# CREATE
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aws cloudformation create-stack ${create_params} --capabilities CAPABILITY_IAM
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aws cloudformation wait stack-create-complete ${stack_params} &> /dev/null
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if [[ "$?" -ne "0" ]]; then
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echo "ERROR: Failed to create $stack_name"
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exit 1
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fi
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else
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# UPDATE
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change_sets="$(aws cloudformation list-change-sets ${stack_params})"
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change_set_count="$(echo ${change_sets} | jq '.Summaries|length')"
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if [[ "$change_set_count" -gt "0" ]]; then
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echo "ERROR: $stack_name has $change_set_count outstanding change sets, please execute or delete them."
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exit 1
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fi
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create_change_set_response=$(aws cloudformation create-change-set ${create_change_set_params})
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change_set_arn="$(echo ${create_change_set_response} | jq '.Id' | tr -d '"')"
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echo "Creating change set $change_set_name for stack $stack_name"
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aws cloudformation wait change-set-create-complete ${change_set_params} ${stack_params} &> /dev/null
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# Most likely failed because there are no changes to apply.
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if [[ "$?" -ne "0" ]]; then
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echo "No changes to apply, exiting"
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aws cloudformation delete-change-set --change-set-name=${change_set_arn} &> /dev/null
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exit 0
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fi
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echo "Change set $change_set_name created for stack $stack_name"
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stack_template=$(aws cloudformation get-template --stack-name ${stack_name} | jq -S .)
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change_set_template=$(aws cloudformation get-template --change-set-name "${change_set_name}" --stack-name ${stack_name} | jq -S .)
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template_diff=$(diff -u <(echo "${stack_template}") <(echo "${change_set_template}") | ydiff -w 0 -s --color=always)
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echo "Changes to be applied:"
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if [[ "$(echo "${template_diff}" | wc -l)" -gt 1 ]]; then
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echo "${template_diff}"
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fi
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echo "Are you happy with your changes? Type 'yes' to continue"
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read -r input
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if [ "$input" != "yes" ]; then
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echo "Exiting..."
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exit 1
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fi
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echo "Applying changes..."
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aws cloudformation execute-change-set --change-set-name ${change_set_arn}
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aws cloudformation wait stack-update-complete ${stack_params}
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if [[ "$?" -ne "0" ]]; then
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echo "ERROR: Failed to update $stack_name with change set $change_set_name"
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exit 1
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fi
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fi
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echo "Successfully applied change set $change_set_name to stack $stack_name" |