Patch ImageMagick on Heroku

instructions.md

Patch ImageMagick on Heroku

• Create a new file on your project: .magick/policy.xml
• Add the following to its contents:

<policymap>
  <policy domain="coder" rights="none" pattern="EPHEMERAL" />
  <policy domain="coder" rights="none" pattern="URL" />
  <policy domain="coder" rights="none" pattern="HTTPS" />
  <policy domain="coder" rights="none" pattern="MVG" />
  <policy domain="coder" rights="none" pattern="MSL" />
</policymap>

• Commit to Heroku (git commit -am "added imagemagick policy" && git push heroku master)

---

Before

~ $ convert -list policy

Path: [built-in]
  Policy: Undefined
    rights: None

After

~ $ convert -list policy

Path: [built-in]
  Policy: Undefined
    rights: None

Path: /app/.magick/policy.xml
  Policy: Coder
    rights: None
    pattern: EPHEMERAL
  Policy: Coder
    rights: None
    pattern: URL
  Policy: Coder
    rights: None
    pattern: HTTPS
  Policy: Coder
    rights: None
    pattern: MVG
  Policy: Coder
    rights: None
    pattern: MSL

This is no longer required. A system-wide update has been shipped last night: https://devcenter.heroku.com/changelog-items/891
Exact change: heroku/base-images@c9a1d5a

@dmathieu, How can I overwrite the HTTPS policy? The images we need to convert require HTTPS.

@dmathieu, Did you got any clue regarding your question. I too still blocked at the same.

You can provide your own list of paths to policy files: https://help.heroku.com/RFDJQSG3/how-can-i-override-imagemagick-settings-in-a-policy-xml-file