title: Can't install package on alpine though I can see it in the ui
body: <p>I was running php7 on alpine without a hitch for the last week till today when I rebuilt my image and now nothing works. I get the errors:</p>
  
  <pre><code>/ # apk add php7
  ERROR: unsatisfiable constraints:
    php7 (missing):
      required by: world[php7]
  </code></pre>
  
  <p>for every package , extension I was trying to install and that previously worked. Here's the RUN command I was using to setup php7:</p>
  
  <pre><code>RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" &gt;&gt; /etc/apk/repositories &amp;&amp; \
      apk update &amp;&amp; \
      apk upgrade &amp;&amp; \
      apk add --update \
          php7-mcrypt \
          php7-soap \
          php7-openssl \
          php7-gmp \
          php7-pdo_odbc \
          php7-json \
          php7-dom \
          php7-pdo \
          php7-zip \
          php7-mysqli \
          php7-sqlite3 \
          php7-pdo_pgsql \
          php7-bcmath \
          php7-gd \
          php7-odbc \
          php7-pdo_mysql \
          php7-pdo_sqlite \
          php7-gettext \
          php7-xmlreader \
          php7-xmlrpc \
          php7-bz2 \
          php7-iconv \
          php7-pdo_dblib \
          php7-curl \
          php7-ctype \
          php7-fpm 
  </code></pre>
  
  <p>All the above extensions installed flawlessly last week. What I'm I missing?</p>
  
  <p>Proof the packages do exist: <a href="https://pkgs.alpinelinux.org/packages?name=php7-*&amp;branch=&amp;repo=&amp;arch=&amp;maintainer=" rel="nofollow">https://pkgs.alpinelinux.org/packages?name=php7-*&amp;branch=&amp;repo=&amp;arch=&amp;maintainer=</a></p>