Class: GoogleCloudPlatform

Inherits:
Object
  • Object
show all
Defined in:
lib/infrastructure/google_cloud_platform/google_cloud_platform.rb

Instance Method Summary collapse

Constructor Details

#initialize(project_name, app_name, credentials) ⇒ GoogleCloudPlatform

Returns a new instance of GoogleCloudPlatform.



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# File 'lib/infrastructure/google_cloud_platform/google_cloud_platform.rb', line 5

def initialize(project_name, app_name, credentials)
    @project_name = project_name
    @app_name = app_name

    # assume we already logged in (GCE instance or GCloud SDK)
    puts project_name

    @storage = Gcloud.storage project_name, credentials
    buckets = @storage.buckets
    buckets.each do |bucket|
        if bucket.name == @app_name
            @bucket = bucket
        end
    end

    unless @bucket
        @bucket = @storage.create_bucket @app_name, retries: 3
    end
end

Instance Method Details

#generate_startup_script ⇒ Object 



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# File 'lib/infrastructure/google_cloud_platform/google_cloud_platform.rb', line 35

def generate_startup_script
    branch = `git rev-parse --abbrev-ref HEAD`.strip

    dist = <<-EOF
#!/bin/bash

gsutil cp gs://<bucket_name>/docker-compose/<primary_yaml> .
gsutil cp gs://<bucket_name>/docker-compose/<backup_yaml> .

# Pull Primary Containers and start them (faster service availability)
docker-compose pull -p <app_name> -f <primary_yaml>
docker-compose up -p <app_name> -f <primary_yaml> -d

# Pull Backup containers and start them
docker-compose pull -p <app_name> -f <backup_yaml>
docker-compose up -p <app_name> -f <backup_yaml> -d
EOF

    dist = dist.gsub('<bucket_name>', @app_name)
    dist = dist.gsub('<app_name>', @app_name)
    dist = dist.gsub('<primary_yaml>', self.get_yaml_filename('primary', true))
    dist = dist.gsub('<backup_yaml>', self.get_yaml_filename('backup', true))

    filename = "#{branch}-startup.sh"
    out_file = File.new(filename, 'w')
    out_file.puts(dist)
    out_file.close

    puts "Generated: #{filename} \n Contents: #{dist}"

    puts "Putting #{filename} on Google Cloud Storage"
    @bucket.create_file filename, "scripts/#{filename}"
end

#get_yaml_filename(duty, latest = false) ⇒ Object 



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# File 'lib/infrastructure/google_cloud_platform/google_cloud_platform.rb', line 25

def get_yaml_filename(duty, latest=false)
    branch = `git rev-parse --abbrev-ref HEAD`.strip
    commit = 'latest'
    unless latest
        commit = `git rev-parse --short HEAD`.strip
    end

    "#{@app_name}-#{branch}-#{commit}_#{duty}.yaml"
end

#make_latest_production_yaml(duty) ⇒ Object 



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# File 'lib/infrastructure/google_cloud_platform/google_cloud_platform.rb', line 75

def make_latest_production_yaml(duty)
    existing_file = @bucket.find_file "docker-compose/#{self.get_yaml_filename(duty)}"

    puts "Making #{existing_file} latest"
    existing_file.copy "docker-compose/#{self.get_yaml_filename(duty, true)}"
end

#put_production_yaml(filename) ⇒ Object 



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# File 'lib/infrastructure/google_cloud_platform/google_cloud_platform.rb', line 69

def put_production_yaml(filename)
    puts "Putting #{filename} on Google Cloud Storage"

    @bucket.create_file filename, "docker-compose/#{filename}"
end