# Global settings applied to the whole site.  
# 
# “base” is the directory to change to before starting build. If you set base:
#        that is where we will look for package.json/.nvmrc/etc, not repo root!
# “command” is your build command.
# “publish” is the directory to publish (relative to the root of your repo).

[build]
  base    = "site"
  command = "make"
  publish = "site/public"

# Production context: All deploys from the main
# repository branch will inherit these settings.
[context.production]
  command = "make production"
  [context.production.environment]
    ACCESS_TOKEN = "super secret"

# Deploy Preview context: All deploys generated from a pull/merge request
# will inherit these settings.
[context.deploy-preview.environment]
  ACCESS_TOKEN = "not so secret"

# Branch deploy context: All deploys that are not from a pull/merge request
# or from the production branch will inherit these settings.
[context.branch-deploy]
  command = "make staging"

# Specific branch context: Deploys from this branch
# will take these settings and override their
# current ones.
[context.feature]
  command = "make feature"

[context."features/branch"]
  command = "gulp"

공식사이트

1569675891685

netlify.toml

# Global settings applied to the whole site.  
# 
# “base” is the directory to change to before starting build. If you set base:
#        that is where we will look for package.json/.nvmrc/etc, not repo root!
# “command” is your build command.
# “publish” is the directory to publish (relative to the root of your repo).

[build]
  base    = "site"
  command = "make"
  publish = "site/public"

# Production context: All deploys from the main
# repository branch will inherit these settings.
[context.production]
  command = "make production"
  [context.production.environment]
    ACCESS_TOKEN = "super secret"

# Deploy Preview context: All deploys generated from a pull/merge request
# will inherit these settings.
[context.deploy-preview.environment]
  ACCESS_TOKEN = "not so secret"
  REACT_APP_SLACK_WEB_TOKEN = "not no secret"
    REACT_APP_SLACK_USER_TOKEN = "not no secret"
    REACT_APP_FIREBASE_API_KEY = "not no secret"

# Branch deploy context: All deploys that are not from a pull/merge request
# or from the production branch will inherit these settings.
[context.branch-deploy]
  command = "make staging"

# Specific branch context: Deploys from this branch
# will take these settings and override their
# current ones.
[context.feature]
  command = "make feature"

[context."features/branch"]
  command = "gulp"

위와 같이 파일을 생성해줍니다.

[context.deploy-preview.environment]
  ACCESS_TOKEN = "not so secret"
  REACT_APP_SLACK_WEB_TOKEN = "not no secret"
  REACT_APP_SLACK_USER_TOKEN = "not no secret"
  REACT_APP_FIREBASE_API_KEY = "not no secret"

제가 수정한 부분은 위 부분인데 netlify에 설정해준 환경변수 이름과 동일하게 사용해주면 됩니다.